61312537101 has 8 divisors (see below), whose sum is σ = 81751507200. Its totient is φ = 40874295872.

The previous prime is 61312537061. The next prime is 61312537129. The reversal of 61312537101 is 10173521316.

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 61312537101 - 2¹³ = 61312528909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61312537301) 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, 60100 + ... + 355298.

It is an arithmetic number, because the mean of its divisors is an integer number (10218938400).

Almost surely, 2^61312537101 is an apocalyptic number.

It is an amenable number.

61312537101 is a deficient number, since it is larger than the sum of its proper divisors (20438970099).

61312537101 is a wasteful number, since it uses less digits than its factorization.

61312537101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364435.

The product of its (nonzero) digits is 3780, while the sum is 30.

The spelling of 61312537101 in words is "sixty-one billion, three hundred twelve million, five hundred thirty-seven thousand, one hundred one".