428077015554 has 16 divisors (see below), whose sum is σ = 856168112448. Its totient is φ = 142689991632.

The previous prime is 428077015543. The next prime is 428077015567. The reversal of 428077015554 is 455510770824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168597 + ... + 940520.

It is an arithmetic number, because the mean of its divisors is an integer number (53510507028).

Almost surely, 2^428077015554 is an apocalyptic number.

428077015554 is an abundant number, since it is smaller than the sum of its proper divisors (428091096894).

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

428077015554 is a wasteful number, since it uses less digits than its factorization.

428077015554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173449.

The product of its (nonzero) digits is 1568000, while the sum is 48.

The spelling of 428077015554 in words is "four hundred twenty-eight billion, seventy-seven million, fifteen thousand, five hundred fifty-four".