15428055331 has 8 divisors (see below), whose sum is σ = 16770109104. Its totient is φ = 14108184480.

The previous prime is 15428055329. The next prime is 15428055337. The reversal of 15428055331 is 13355082451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15428055331 - 2¹ = 15428055329 is a prime.

It is a super-2 number, since 2×15428055331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15428055337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5544280 + ... + 5547061.

It is an arithmetic number, because the mean of its divisors is an integer number (2096263638).

Almost surely, 2^15428055331 is an apocalyptic number.

15428055331 is a deficient number, since it is larger than the sum of its proper divisors (1342053773).

15428055331 is a wasteful number, since it uses less digits than its factorization.

15428055331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11091461.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 15428055331 in words is "fifteen billion, four hundred twenty-eight million, fifty-five thousand, three hundred thirty-one".