619971963 has 64 divisors (see below), whose sum is σ = 980582400. Its totient is φ = 344881152.

The previous prime is 619971949. The next prime is 619971973. The reversal of 619971963 is 369179916.

619971963 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 619971963 - 2⁵ = 619971931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (619971943) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3115338 + ... + 3115536.

It is an arithmetic number, because the mean of its divisors is an integer number (15321600).

Almost surely, 2^619971963 is an apocalyptic number.

619971963 is a deficient number, since it is larger than the sum of its proper divisors (360610437).

619971963 is a wasteful number, since it uses less digits than its factorization.

619971963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its digits is 551124, while the sum is 51.

The square root of 619971963 is about 24899.2361931044. The cubic root of 619971963 is about 852.6890447994.

The spelling of 619971963 in words is "six hundred nineteen million, nine hundred seventy-one thousand, nine hundred sixty-three".