28292631455 has 32 divisors (see below), whose sum is σ = 38756501568. Its totient is φ = 19642521600.

The previous prime is 28292631413. The next prime is 28292631481. The reversal of 28292631455 is 55413629282.

It is not a de Polignac number, because 28292631455 - 2¹⁶ = 28292565919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23306 + ... + 239015.

It is an arithmetic number, because the mean of its divisors is an integer number (1211140674).

Almost surely, 2^28292631455 is an apocalyptic number.

28292631455 is a deficient number, since it is larger than the sum of its proper divisors (10463870113).

28292631455 is a wasteful number, since it uses less digits than its factorization.

28292631455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262427.

The product of its digits is 1036800, while the sum is 47.

The spelling of 28292631455 in words is "twenty-eight billion, two hundred ninety-two million, six hundred thirty-one thousand, four hundred fifty-five".