261157540883 has 2 divisors, whose sum is σ = 261157540884. Its totient is φ = 261157540882.

The previous prime is 261157540877. The next prime is 261157540937. The reversal of 261157540883 is 388045751162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261157540883 - 2¹⁴ = 261157524499 is a prime.

It is a super-2 number, since 2×261157540883² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (261157540843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130578770441 + 130578770442.

It is an arithmetic number, because the mean of its divisors is an integer number (130578770442).

Almost surely, 2^261157540883 is an apocalyptic number.

261157540883 is a deficient number, since it is larger than the sum of its proper divisors (1).

261157540883 is an equidigital number, since it uses as much as digits as its factorization.

261157540883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 261157540883 in words is "two hundred sixty-one billion, one hundred fifty-seven million, five hundred forty thousand, eight hundred eighty-three".