1912697963 has 32 divisors (see below), whose sum is σ = 2214535680. Its totient is φ = 1635068160.

The previous prime is 1912697959. The next prime is 1912697981. The reversal of 1912697963 is 3697962191.

It is a happy number.

It is not a de Polignac number, because 1912697963 - 2² = 1912697959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1912697363) 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, 4817681 + ... + 4818077.

It is an arithmetic number, because the mean of its divisors is an integer number (69204240).

Almost surely, 2^1912697963 is an apocalyptic number.

1912697963 is a deficient number, since it is larger than the sum of its proper divisors (301837717).

1912697963 is a wasteful number, since it uses less digits than its factorization.

1912697963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707.

The product of its digits is 1102248, while the sum is 53.

The square root of 1912697963 is about 43734.4025110667. The cubic root of 1912697963 is about 1241.3153668958.

The spelling of 1912697963 in words is "one billion, nine hundred twelve million, six hundred ninety-seven thousand, nine hundred sixty-three".