61697002275 has 18 divisors (see below), whose sum is σ = 110506186700. Its totient is φ = 32905067760.

The previous prime is 61697002247. The next prime is 61697002321. The reversal of 61697002275 is 57220079616.

61697002275 is a `hidden beast` number, since 616 + 9 + 7 + 0 + 0 + 2 + 27 + 5 = 666.

It is not a de Polignac number, because 61697002275 - 2⁵ = 61697002243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 61697002275.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 137104225 + ... + 137104674.

Almost surely, 2^61697002275 is an apocalyptic number.

61697002275 is a deficient number, since it is larger than the sum of its proper divisors (48809184425).

61697002275 is a wasteful number, since it uses less digits than its factorization.

61697002275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274208915 (or 274208907 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 61697002275 in words is "sixty-one billion, six hundred ninety-seven million, two thousand, two hundred seventy-five".