427157715390 has 32 divisors (see below), whose sum is σ = 1171632591360. Its totient is φ = 97636049184.

The previous prime is 427157715359. The next prime is 427157715401. The reversal of 427157715390 is 93517751724.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017041970 + ... + 1017042389.

It is an arithmetic number, because the mean of its divisors is an integer number (36613518480).

Almost surely, 2^427157715390 is an apocalyptic number.

427157715390 is an abundant number, since it is smaller than the sum of its proper divisors (744474875970).

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

427157715390 is a wasteful number, since it uses less digits than its factorization.

427157715390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034084376.

The product of its (nonzero) digits is 1852200, while the sum is 51.

The spelling of 427157715390 in words is "four hundred twenty-seven billion, one hundred fifty-seven million, seven hundred fifteen thousand, three hundred ninety".