26146000657 has 8 divisors (see below), whose sum is σ = 29882160000. Its totient is φ = 22410095424.

The previous prime is 26146000633. The next prime is 26146000669. The reversal of 26146000657 is 75600064162.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 26146000657 - 2¹⁹ = 26145476369 is a prime.

It is a super-2 number, since 2×26146000657² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26146000057) 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, 282969 + ... + 363817.

It is an arithmetic number, because the mean of its divisors is an integer number (3735270000).

Almost surely, 2^26146000657 is an apocalyptic number.

26146000657 is the 80849-th decagonal number.

It is an amenable number.

26146000657 is a deficient number, since it is larger than the sum of its proper divisors (3736159343).

26146000657 is an equidigital number, since it uses as much as digits as its factorization.

26146000657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127055.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 26146000657 in words is "twenty-six billion, one hundred forty-six million, six hundred fifty-seven", and thus it is an aban number.