70491021252736 has 768 divisors, whose sum is σ = 179934462720000. Its totient is φ = 27317652848640.

The previous prime is 70491021252731. The next prime is 70491021252737. The reversal of 70491021252736 is 63725212019407.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 70491021252736.

It is not an unprimeable number, because it can be changed into a prime (70491021252731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 177559247290 + ... + 177559247686.

It is an arithmetic number, because the mean of its divisors is an integer number (234289665000).

Almost surely, 2^{70491021252736} is an apocalyptic number.

70491021252736 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70491021252736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89967231360000).

70491021252736 is an abundant number, since it is smaller than the sum of its proper divisors (109443441467264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70491021252736 is a wasteful number, since it uses less digits than its factorization.

70491021252736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 70491021252736 in words is "seventy trillion, four hundred ninety-one billion, twenty-one million, two hundred fifty-two thousand, seven hundred thirty-six".