26102547972 has 24 divisors (see below), whose sum is σ = 67673272800. Its totient is φ = 8700849288.

The previous prime is 26102547971. The next prime is 26102547979. The reversal of 26102547972 is 27974520162.

26102547972 is a `hidden beast` number, since 2 + 6 + 10 + 2 + 547 + 97 + 2 = 666.

It is a super-2 number, since 2×26102547972² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26102547971) 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, 120845022 + ... + 120845237.

It is an arithmetic number, because the mean of its divisors is an integer number (2819719700).

Almost surely, 2^26102547972 is an apocalyptic number.

It is an amenable number.

26102547972 is an abundant number, since it is smaller than the sum of its proper divisors (41570724828).

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

26102547972 is a wasteful number, since it uses less digits than its factorization.

26102547972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241690272 (or 241690264 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 26102547972 in words is "twenty-six billion, one hundred two million, five hundred forty-seven thousand, nine hundred seventy-two".