61657752803 has 8 divisors (see below), whose sum is σ = 66557095200. Its totient is φ = 56943291328.

The previous prime is 61657752799. The next prime is 61657752809. The reversal of 61657752803 is 30825775616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61657752803 - 2² = 61657752799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61657752809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46219538 + ... + 46220871.

It is an arithmetic number, because the mean of its divisors is an integer number (8319636900).

Almost surely, 2^61657752803 is an apocalyptic number.

61657752803 is a deficient number, since it is larger than the sum of its proper divisors (4899342397).

61657752803 is a wasteful number, since it uses less digits than its factorization.

61657752803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92440461.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 61657752803 in words is "sixty-one billion, six hundred fifty-seven million, seven hundred fifty-two thousand, eight hundred three".