264401279958 has 32 divisors (see below), whose sum is σ = 529861570560. Its totient is φ = 87957342720.

The previous prime is 264401279921. The next prime is 264401279959. The reversal of 264401279958 is 859972104462.

It is a junction number, because it is equal to n+sod(n) for n = 264401279898 and 264401279907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264401279959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16855563 + ... + 16871241.

It is an arithmetic number, because the mean of its divisors is an integer number (16558174080).

Almost surely, 2^264401279958 is an apocalyptic number.

264401279958 is an abundant number, since it is smaller than the sum of its proper divisors (265460290602).

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

264401279958 is a wasteful number, since it uses less digits than its factorization.

264401279958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21132.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 264401279958 in words is "two hundred sixty-four billion, four hundred one million, two hundred seventy-nine thousand, nine hundred fifty-eight".