26610578979 has 16 divisors (see below), whose sum is σ = 35882196480. Its totient is φ = 17540165600.

The previous prime is 26610578971. The next prime is 26610578987. The reversal of 26610578979 is 97987501662.

It is an interprime number because it is at equal distance from previous prime (26610578971) and next prime (26610578987).

It is a cyclic number.

It is not a de Polignac number, because 26610578979 - 2³ = 26610578971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26610578971) 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, 156784 + ... + 278930.

It is an arithmetic number, because the mean of its divisors is an integer number (2242637280).

Almost surely, 2^26610578979 is an apocalyptic number.

26610578979 is a deficient number, since it is larger than the sum of its proper divisors (9271617501).

26610578979 is a wasteful number, since it uses less digits than its factorization.

26610578979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122970.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 26610578979 in words is "twenty-six billion, six hundred ten million, five hundred seventy-eight thousand, nine hundred seventy-nine".