26026400550 has 24 divisors (see below), whose sum is σ = 64545473736. Its totient is φ = 6940373440.

The previous prime is 26026400549. The next prime is 26026400567. The reversal of 26026400550 is 5500462062.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86754519 + ... + 86754818.

It is an arithmetic number, because the mean of its divisors is an integer number (2689394739).

Almost surely, 2^26026400550 is an apocalyptic number.

26026400550 is an abundant number, since it is smaller than the sum of its proper divisors (38519073186).

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

26026400550 is a wasteful number, since it uses less digits than its factorization.

26026400550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173509352 (or 173509347 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 26026400550 in words is "twenty-six billion, twenty-six million, four hundred thousand, five hundred fifty".