70353776640 has 312 divisors, whose sum is σ = 261867580560. Its totient is φ = 16080175104.

The previous prime is 70353776567. The next prime is 70353776653. The reversal of 70353776640 is 4667735307.

It is a super-2 number, since 2×70353776640² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 70353776640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2998876 + ... + 3022244.

Almost surely, 2^70353776640 is an apocalyptic number.

70353776640 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 70353776640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130933790280).

70353776640 is an abundant number, since it is smaller than the sum of its proper divisors (191513803920).

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

70353776640 is a wasteful number, since it uses less digits than its factorization.

70353776640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23415 (or 23386 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 48.

The spelling of 70353776640 in words is "seventy billion, three hundred fifty-three million, seven hundred seventy-six thousand, six hundred forty".