61461406231 has 2 divisors, whose sum is σ = 61461406232. Its totient is φ = 61461406230.

The previous prime is 61461406199. The next prime is 61461406271. The reversal of 61461406231 is 13260416416.

61461406231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61461406231 - 2⁵ = 61461406199 is a prime.

It is a super-2 number, since 2×61461406231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61461406271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30730703115 + 30730703116.

It is an arithmetic number, because the mean of its divisors is an integer number (30730703116).

Almost surely, 2^61461406231 is an apocalyptic number.

61461406231 is a deficient number, since it is larger than the sum of its proper divisors (1).

61461406231 is an equidigital number, since it uses as much as digits as its factorization.

61461406231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 61461406231 in words is "sixty-one billion, four hundred sixty-one million, four hundred six thousand, two hundred thirty-one".