61057267261005 has 32 divisors (see below), whose sum is σ = 99535776963840. Its totient is φ = 31949170672640.

The previous prime is 61057267260931. The next prime is 61057267261063. The reversal of 61057267261005 is 50016276275016.

It is not a de Polignac number, because 61057267261005 - 2¹⁶ = 61057267195469 is a prime.

It is a super-2 number, since 2×61057267261005² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107264536 + ... + 107832254.

It is an arithmetic number, because the mean of its divisors is an integer number (3110493030120).

Almost surely, 2^{61057267261005} is an apocalyptic number.

It is an amenable number.

61057267261005 is a deficient number, since it is larger than the sum of its proper divisors (38478509702835).

61057267261005 is a wasteful number, since it uses less digits than its factorization.

61057267261005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703061.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 61057267261005 in words is "sixty-one trillion, fifty-seven billion, two hundred sixty-seven million, two hundred sixty-one thousand, five".