61901473695 has 8 divisors (see below), whose sum is σ = 99042357936. Its totient is φ = 33014119296.

The previous prime is 61901473633. The next prime is 61901473747. The reversal of 61901473695 is 59637410916.

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

It is not a de Polignac number, because 61901473695 - 2¹¹ = 61901471647 is a prime.

It is a super-2 number, since 2×61901473695² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2063382442 + ... + 2063382471.

It is an arithmetic number, because the mean of its divisors is an integer number (12380294742).

Almost surely, 2^61901473695 is an apocalyptic number.

61901473695 is a deficient number, since it is larger than the sum of its proper divisors (37140884241).

61901473695 is a wasteful number, since it uses less digits than its factorization.

61901473695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126764921.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 61901473695 in words is "sixty-one billion, nine hundred one million, four hundred seventy-three thousand, six hundred ninety-five".