61232722461 has 6 divisors (see below), whose sum is σ = 88447265790. Its totient is φ = 40821814968.

The previous prime is 61232722457. The next prime is 61232722469. The reversal of 61232722461 is 16422723216.

61232722461 is a `hidden beast` number, since 6 + 123 + 2 + 72 + 2 + 461 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31297148100 + 29935574361 = 176910^2 + 173019^2 .

It is not a de Polignac number, because 61232722461 - 2² = 61232722457 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61232722469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3401817906 + ... + 3401817923.

It is an arithmetic number, because the mean of its divisors is an integer number (14741210965).

Almost surely, 2^61232722461 is an apocalyptic number.

It is an amenable number.

61232722461 is a deficient number, since it is larger than the sum of its proper divisors (27214543329).

61232722461 is a wasteful number, since it uses less digits than its factorization.

61232722461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803635835 (or 6803635832 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The spelling of 61232722461 in words is "sixty-one billion, two hundred thirty-two million, seven hundred twenty-two thousand, four hundred sixty-one".