75837538662961 has 4 divisors (see below), whose sum is σ = 75840551820900. Its totient is φ = 75834525505024.

The previous prime is 75837538662931. The next prime is 75837538662967. The reversal of 75837538662961 is 16926683573857.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40986167377936 + 34851371285025 = 6402044^2 + 5903505^2 .

It is a cyclic number.

It is not a de Polignac number, because 75837538662961 - 2¹¹ = 75837538660913 is a prime.

It is a super-2 number, since 2×75837538662961² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75837538662967) 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, 1506541216 + ... + 1506591553.

It is an arithmetic number, because the mean of its divisors is an integer number (18960137955225).

Almost surely, 2^{75837538662961} is an apocalyptic number.

It is an amenable number.

75837538662961 is a deficient number, since it is larger than the sum of its proper divisors (3013157939).

75837538662961 is a wasteful number, since it uses less digits than its factorization.

75837538662961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013157938.

The product of its digits is 2743372800, while the sum is 76.

The spelling of 75837538662961 in words is "seventy-five trillion, eight hundred thirty-seven billion, five hundred thirty-eight million, six hundred sixty-two thousand, nine hundred sixty-one".