42977458420 has 48 divisors (see below), whose sum is σ = 97473877200. Its totient is φ = 15823097856.

The previous prime is 42977458417. The next prime is 42977458421. The reversal of 42977458420 is 2485477924.

42977458420 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 8 ways, for example, as 2111218704 + 40866239716 = 45948^2 + 202154^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42977458421) 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, 146077 + ... + 327556.

It is an arithmetic number, because the mean of its divisors is an integer number (2030705775).

Almost surely, 2^42977458420 is an apocalyptic number.

It is an amenable number.

42977458420 is an abundant number, since it is smaller than the sum of its proper divisors (54496418780).

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

42977458420 is a wasteful number, since it uses less digits than its factorization.

42977458420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474004 (or 474002 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 42977458420 in words is "forty-two billion, nine hundred seventy-seven million, four hundred fifty-eight thousand, four hundred twenty".