70420691264 has 336 divisors, whose sum is σ = 181196918784. Its totient is φ = 26568622080.

The previous prime is 70420691227. The next prime is 70420691279. The reversal of 70420691264 is 46219602407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 364873952 + ... + 364874144.

It is an arithmetic number, because the mean of its divisors is an integer number (539276544).

Almost surely, 2^70420691264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70420691264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90598459392).

70420691264 is an abundant number, since it is smaller than the sum of its proper divisors (110776227520).

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

70420691264 is a wasteful number, since it uses less digits than its factorization.

70420691264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 70420691264 in words is "seventy billion, four hundred twenty million, six hundred ninety-one thousand, two hundred sixty-four".