70851073440 has 384 divisors, whose sum is σ = 258900364800. Its totient is φ = 15952969728.

The previous prime is 70851073399. The next prime is 70851073481. The reversal of 70851073440 is 4437015807.

It is an interprime number because it is at equal distance from previous prime (70851073399) and next prime (70851073481).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68587164 + ... + 68588196.

It is an arithmetic number, because the mean of its divisors is an integer number (674219700).

Almost surely, 2^70851073440 is an apocalyptic number.

70851073440 is a gapful number since it is divisible by the number (70) 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 70851073440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129450182400).

70851073440 is an abundant number, since it is smaller than the sum of its proper divisors (188049291360).

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

70851073440 is a wasteful number, since it uses less digits than its factorization.

70851073440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 70851073440 in words is "seventy billion, eight hundred fifty-one million, seventy-three thousand, four hundred forty".