26190736864 has 24 divisors (see below), whose sum is σ = 51609245688. Its totient is φ = 13083626880.

The previous prime is 26190736823. The next prime is 26190736879. The reversal of 26190736864 is 46863709162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330622 + ... + 402109.

It is an arithmetic number, because the mean of its divisors is an integer number (2150385237).

Almost surely, 2^26190736864 is an apocalyptic number.

It is an amenable number.

26190736864 is a deficient number, since it is larger than the sum of its proper divisors (25418508824).

26190736864 is a wasteful number, since it uses less digits than its factorization.

26190736864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733858 (or 733850 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 26190736864 in words is "twenty-six billion, one hundred ninety million, seven hundred thirty-six thousand, eight hundred sixty-four".