61368357122 has 18 divisors (see below), whose sum is σ = 94078014147. Its totient is φ = 30023265924.

The previous prime is 61368357121. The next prime is 61368357133. The reversal of 61368357122 is 22175386316.

It can be written as a sum of positive squares in only one way, i.e., 30684178561 + 30684178561 = 175169^2 + 175169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=175169.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61368357121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16464023 + ... + 16467749.

Almost surely, 2^61368357122 is an apocalyptic number.

61368357122 is a deficient number, since it is larger than the sum of its proper divisors (32709657025).

61368357122 is an frugal number, since it uses more digits than its factorization.

61368357122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550 (or 3776 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The spelling of 61368357122 in words is "sixty-one billion, three hundred sixty-eight million, three hundred fifty-seven thousand, one hundred twenty-two".