61312390662501 has 12 divisors (see below), whose sum is σ = 96613464074400. Its totient is φ = 37159024643880.

The previous prime is 61312390662469. The next prime is 61312390662511. The reversal of 61312390662501 is 10526609321316.

61312390662501 is a `hidden beast` number, since 6 + 1 + 3 + 1 + 2 + 390 + 6 + 6 + 250 + 1 = 666.

It is not a de Polignac number, because 61312390662501 - 2⁵ = 61312390662469 is a prime.

It is a super-2 number, since 2×61312390662501² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61312390662511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309658538601 + ... + 309658538798.

It is an arithmetic number, because the mean of its divisors is an integer number (8051122006200).

Almost surely, 2^{61312390662501} is an apocalyptic number.

It is an amenable number.

61312390662501 is a deficient number, since it is larger than the sum of its proper divisors (35301073411899).

61312390662501 is a wasteful number, since it uses less digits than its factorization.

61312390662501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619317077416 (or 619317077413 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

Adding to 61312390662501 its reverse (10526609321316), we get a palindrome (71838999983817).

The spelling of 61312390662501 in words is "sixty-one trillion, three hundred twelve billion, three hundred ninety million, six hundred sixty-two thousand, five hundred one".