42556777145052 has 12 divisors (see below), whose sum is σ = 99299146671816. Its totient is φ = 14185592381680.

The previous prime is 42556777145041. The next prime is 42556777145089. The reversal of 42556777145052 is 25054177765524.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×42556777145052² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773199047699 + ... + 1773199047722.

It is an arithmetic number, because the mean of its divisors is an integer number (8274928889318).

Almost surely, 2^{42556777145052} is an apocalyptic number.

It is an amenable number.

42556777145052 is an abundant number, since it is smaller than the sum of its proper divisors (56742369526764).

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

42556777145052 is a wasteful number, since it uses less digits than its factorization.

42556777145052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546398095428 (or 3546398095426 counting only the distinct ones).

The product of its (nonzero) digits is 82320000, while the sum is 60.

The spelling of 42556777145052 in words is "forty-two trillion, five hundred fifty-six billion, seven hundred seventy-seven million, one hundred forty-five thousand, fifty-two".