73646312420131 has 16 divisors (see below), whose sum is σ = 80589645093888. Its totient is φ = 66744445715200.

The previous prime is 73646312420117. The next prime is 73646312420141. The reversal of 73646312420131 is 13102421364637.

It is not a de Polignac number, because 73646312420131 - 2¹³ = 73646312411939 is a prime.

It is a super-2 number, since 2×73646312420131² (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 (73646312420141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12761670 + ... + 17611156.

It is an arithmetic number, because the mean of its divisors is an integer number (5036852818368).

Almost surely, 2^{73646312420131} is an apocalyptic number.

73646312420131 is a deficient number, since it is larger than the sum of its proper divisors (6943332673757).

73646312420131 is a wasteful number, since it uses less digits than its factorization.

73646312420131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853762.

The product of its (nonzero) digits is 435456, while the sum is 43.

Adding to 73646312420131 its reverse (13102421364637), we get a palindrome (86748733784768).

The spelling of 73646312420131 in words is "seventy-three trillion, six hundred forty-six billion, three hundred twelve million, four hundred twenty thousand, one hundred thirty-one".