61411420651 has 6 divisors (see below), whose sum is σ = 71437775100. Its totient is φ = 52638360516.

The previous prime is 61411420621. The next prime is 61411420669. The reversal of 61411420651 is 15602411416.

It is not a de Polignac number, because 61411420651 - 2⁷ = 61411420523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61411420621) 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, 626647101 + ... + 626647198.

It is an arithmetic number, because the mean of its divisors is an integer number (11906295850).

Almost surely, 2^61411420651 is an apocalyptic number.

61411420651 is a deficient number, since it is larger than the sum of its proper divisors (10026354449).

61411420651 is a wasteful number, since it uses less digits than its factorization.

61411420651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253294313 (or 1253294306 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 61411420651 in words is "sixty-one billion, four hundred eleven million, four hundred twenty thousand, six hundred fifty-one".