70072761420 has 120 divisors (see below), whose sum is σ = 222603796800. Its totient is φ = 18449503488.

The previous prime is 70072761419. The next prime is 70072761443. The reversal of 70072761420 is 2416727007.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 145785 + ... + 401744.

It is an arithmetic number, because the mean of its divisors is an integer number (1855031640).

Almost surely, 2^70072761420 is an apocalyptic number.

It is an amenable number.

70072761420 is an abundant number, since it is smaller than the sum of its proper divisors (152531035380).

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

70072761420 is a wasteful number, since it uses less digits than its factorization.

70072761420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547629 (or 547618 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The spelling of 70072761420 in words is "seventy billion, seventy-two million, seven hundred sixty-one thousand, four hundred twenty".