53197789780 has 12 divisors (see below), whose sum is σ = 111715358580. Its totient is φ = 21279115904.

The previous prime is 53197789769. The next prime is 53197789781. The reversal of 53197789780 is 8798779135.

53197789780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9528492996 + 43669296784 = 97614^2 + 208972^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53197789781) 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, 1329944725 + ... + 1329944764.

It is an arithmetic number, because the mean of its divisors is an integer number (9309613215).

Almost surely, 2^53197789780 is an apocalyptic number.

It is an amenable number.

53197789780 is an abundant number, since it is smaller than the sum of its proper divisors (58517568800).

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

53197789780 is a wasteful number, since it uses less digits than its factorization.

53197789780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659889498 (or 2659889496 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 64.

The spelling of 53197789780 in words is "fifty-three billion, one hundred ninety-seven million, seven hundred eighty-nine thousand, seven hundred eighty".