261077252588 has 12 divisors (see below), whose sum is σ = 468028733592. Its totient is φ = 127354757280.

The previous prime is 261077252581. The next prime is 261077252641. The reversal of 261077252588 is 885252770162.

It is a super-2 number, since 2×261077252588² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (261077252581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795967070 + ... + 795967397.

It is an arithmetic number, because the mean of its divisors is an integer number (39002394466).

Almost surely, 2^261077252588 is an apocalyptic number.

It is an amenable number.

261077252588 is a deficient number, since it is larger than the sum of its proper divisors (206951481004).

261077252588 is a wasteful number, since it uses less digits than its factorization.

261077252588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591934512 (or 1591934510 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 261077252588 in words is "two hundred sixty-one billion, seventy-seven million, two hundred fifty-two thousand, five hundred eighty-eight".