61425322651 has 32 divisors (see below), whose sum is σ = 79368339456. Its totient is φ = 46134900000.

The previous prime is 61425322643. The next prime is 61425322691. The reversal of 61425322651 is 15622352416.

61425322651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61425322651 - 2³ = 61425322643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61425322651.

It is not an unprimeable number, because it can be changed into a prime (61425322631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547876 + ... + 650398.

It is an arithmetic number, because the mean of its divisors is an integer number (2480260608).

Almost surely, 2^61425322651 is an apocalyptic number.

61425322651 is a deficient number, since it is larger than the sum of its proper divisors (17943016805).

61425322651 is a wasteful number, since it uses less digits than its factorization.

61425322651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102823.

The product of its digits is 86400, while the sum is 37.

The spelling of 61425322651 in words is "sixty-one billion, four hundred twenty-five million, three hundred twenty-two thousand, six hundred fifty-one".