61700017075 has 24 divisors (see below), whose sum is σ = 77612666400. Its totient is φ = 48647827200.

The previous prime is 61700017069. The next prime is 61700017111. The reversal of 61700017075 is 57071000716.

It is not a de Polignac number, because 61700017075 - 2²¹ = 61697919923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61700017075.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8248237 + ... + 8255713.

It is an arithmetic number, because the mean of its divisors is an integer number (3233861100).

Almost surely, 2^61700017075 is an apocalyptic number.

61700017075 is a deficient number, since it is larger than the sum of its proper divisors (15912649325).

61700017075 is a wasteful number, since it uses less digits than its factorization.

61700017075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207 (or 12202 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 34.

The spelling of 61700017075 in words is "sixty-one billion, seven hundred million, seventeen thousand, seventy-five".