61051740651 has 12 divisors (see below), whose sum is σ = 96202743000. Its totient is φ = 37001054880.

The previous prime is 61051740643. The next prime is 61051740653. The reversal of 61051740651 is 15604715016.

It is a happy number.

It is not a de Polignac number, because 61051740651 - 2³ = 61051740643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61051740653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308342026 + ... + 308342223.

It is an arithmetic number, because the mean of its divisors is an integer number (8016895250).

Almost surely, 2^61051740651 is an apocalyptic number.

61051740651 is a deficient number, since it is larger than the sum of its proper divisors (35151002349).

61051740651 is a wasteful number, since it uses less digits than its factorization.

61051740651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616684266 (or 616684263 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 61051740651 in words is "sixty-one billion, fifty-one million, seven hundred forty thousand, six hundred fifty-one".