61271900393 has 8 divisors (see below), whose sum is σ = 66877782816. Its totient is φ = 55671969600.

The previous prime is 61271900351. The next prime is 61271900411. The reversal of 61271900393 is 39300917216.

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 61271900393 - 2⁶ = 61271900329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61271900393.

It is not an unprimeable number, because it can be changed into a prime (61271900993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466363 + ... + 1507568.

It is an arithmetic number, because the mean of its divisors is an integer number (8359722852).

Almost surely, 2^61271900393 is an apocalyptic number.

It is an amenable number.

61271900393 is a deficient number, since it is larger than the sum of its proper divisors (5605882423).

61271900393 is a wasteful number, since it uses less digits than its factorization.

61271900393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975815.

The product of its (nonzero) digits is 61236, while the sum is 41.

The spelling of 61271900393 in words is "sixty-one billion, two hundred seventy-one million, nine hundred thousand, three hundred ninety-three".