43021203860778 has 64 divisors (see below), whose sum is σ = 107030950653312. Its totient is φ = 11326026516480.

The previous prime is 43021203860681. The next prime is 43021203860783. The reversal of 43021203860778 is 87706830212034.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 43021203860778.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1474728451 + ... + 1474757622.

It is an arithmetic number, because the mean of its divisors is an integer number (1672358603958).

Almost surely, 2^{43021203860778} is an apocalyptic number.

43021203860778 is an abundant number, since it is smaller than the sum of its proper divisors (64009746792534).

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

43021203860778 is a wasteful number, since it uses less digits than its factorization.

43021203860778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949486119.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 43021203860778 in words is "forty-three trillion, twenty-one billion, two hundred three million, eight hundred sixty thousand, seven hundred seventy-eight".