26516258977 has 8 divisors (see below), whose sum is σ = 28587056960. Its totient is φ = 24449901840.

The previous prime is 26516258959. The next prime is 26516259023. The reversal of 26516258977 is 77985261562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-26516258977 is a prime.

It is a super-2 number, since 2×26516258977² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26516258947) 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, 1097799 + ... + 1121692.

It is an arithmetic number, because the mean of its divisors is an integer number (3573382120).

Almost surely, 2^26516258977 is an apocalyptic number.

It is an amenable number.

26516258977 is a deficient number, since it is larger than the sum of its proper divisors (2070797983).

26516258977 is a wasteful number, since it uses less digits than its factorization.

26516258977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220423.

The product of its digits is 12700800, while the sum is 58.

The spelling of 26516258977 in words is "twenty-six billion, five hundred sixteen million, two hundred fifty-eight thousand, nine hundred seventy-seven".