70779848540 has 12 divisors (see below), whose sum is σ = 148637681976. Its totient is φ = 28311939408.

The previous prime is 70779848539. The next prime is 70779848543. The reversal of 70779848540 is 4584897707.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 70779848540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70779848543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1769496194 + ... + 1769496233.

It is an arithmetic number, because the mean of its divisors is an integer number (12386473498).

Almost surely, 2^70779848540 is an apocalyptic number.

It is an amenable number.

70779848540 is an abundant number, since it is smaller than the sum of its proper divisors (77857833436).

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

70779848540 is a wasteful number, since it uses less digits than its factorization.

70779848540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538992436 (or 3538992434 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 59.

The spelling of 70779848540 in words is "seventy billion, seven hundred seventy-nine million, eight hundred forty-eight thousand, five hundred forty".