70626465840 has 80 divisors (see below), whose sum is σ = 250219484928. Its totient is φ = 16143191808.

The previous prime is 70626465827. The next prime is 70626465841. The reversal of 70626465840 is 4856462607.

It is a tau number, because it is divible by the number of its divisors (80).

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 70626465840.

It is not an unprimeable number, because it can be changed into a prime (70626465841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21018102 + ... + 21021461.

Almost surely, 2^70626465840 is an apocalyptic number.

70626465840 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70626465840 is an abundant number, since it is smaller than the sum of its proper divisors (179593019088).

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

70626465840 is a wasteful number, since it uses less digits than its factorization.

70626465840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42039586 (or 42039580 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 70626465840 in words is "seventy billion, six hundred twenty-six million, four hundred sixty-five thousand, eight hundred forty".