63157947379 has 4 divisors (see below), whose sum is σ = 63159201160. Its totient is φ = 63156693600.

The previous prime is 63157947373. The next prime is 63157947449. The reversal of 63157947379 is 97374975136.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63157947379 - 2⁹ = 63157946867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63157947373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548022 + ... + 653179.

It is an arithmetic number, because the mean of its divisors is an integer number (15789800290).

Almost surely, 2^63157947379 is an apocalyptic number.

63157947379 is a deficient number, since it is larger than the sum of its proper divisors (1253781).

63157947379 is a wasteful number, since it uses less digits than its factorization.

63157947379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253780.

The product of its digits is 30005640, while the sum is 61.

The spelling of 63157947379 in words is "sixty-three billion, one hundred fifty-seven million, nine hundred forty-seven thousand, three hundred seventy-nine".