61683797901 has 32 divisors (see below), whose sum is σ = 96996672000. Its totient is φ = 34459318080.

The previous prime is 61683797887. The next prime is 61683797953. The reversal of 61683797901 is 10979738616.

61683797901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61683797901 - 2¹⁰ = 61683796877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61683727901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1306251 + ... + 1352648.

It is an arithmetic number, because the mean of its divisors is an integer number (3031146000).

Almost surely, 2^61683797901 is an apocalyptic number.

It is an amenable number.

61683797901 is a deficient number, since it is larger than the sum of its proper divisors (35312874099).

61683797901 is a wasteful number, since it uses less digits than its factorization.

61683797901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658969.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 61683797901 in words is "sixty-one billion, six hundred eighty-three million, seven hundred ninety-seven thousand, nine hundred one".