26572647504 has 160 divisors (see below), whose sum is σ = 79603655040. Its totient is φ = 7564640256.

The previous prime is 26572647503. The next prime is 26572647527. The reversal of 26572647504 is 40574627562.

It is a super-2 number, since 2×26572647504² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26572647503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 604644 + ... + 647100.

It is an arithmetic number, because the mean of its divisors is an integer number (497522844).

Almost surely, 2^26572647504 is an apocalyptic number.

26572647504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26572647504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39801827520).

26572647504 is an abundant number, since it is smaller than the sum of its proper divisors (53031007536).

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

26572647504 is a wasteful number, since it uses less digits than its factorization.

26572647504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42557 (or 42551 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 26572647504 in words is "twenty-six billion, five hundred seventy-two million, six hundred forty-seven thousand, five hundred four".