26098400988 has 96 divisors (see below), whose sum is σ = 77698656000. Its totient is φ = 7492357440.

The previous prime is 26098400947. The next prime is 26098401031. The reversal of 26098400988 is 88900489062.

26098400988 is a `hidden beast` number, since 2 + 60 + 98 + 400 + 98 + 8 = 666.

It is a super-2 number, since 2×26098400988² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 555543 + ... + 600686.

It is an arithmetic number, because the mean of its divisors is an integer number (809361000).

Almost surely, 2^26098400988 is an apocalyptic number.

It is an amenable number.

26098400988 is an abundant number, since it is smaller than the sum of its proper divisors (51600255012).

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

26098400988 is a wasteful number, since it uses less digits than its factorization.

26098400988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156272 (or 1156264 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 26098400988 in words is "twenty-six billion, ninety-eight million, four hundred thousand, nine hundred eighty-eight".