26147588820 has 48 divisors (see below), whose sum is σ = 77519913408. Its totient is φ = 6562531840.

The previous prime is 26147588791. The next prime is 26147588821. The reversal of 26147588820 is 2888574162.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26147588821) 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, 12816426 + ... + 12818465.

It is an arithmetic number, because the mean of its divisors is an integer number (1614998196).

Almost surely, 2^26147588820 is an apocalyptic number.

26147588820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26147588820 is an abundant number, since it is smaller than the sum of its proper divisors (51372324588).

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

26147588820 is a wasteful number, since it uses less digits than its factorization.

26147588820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25634920 (or 25634918 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 26147588820 in words is "twenty-six billion, one hundred forty-seven million, five hundred eighty-eight thousand, eight hundred twenty".