1964974461 has 16 divisors (see below), whose sum is σ = 2785609728. Its totient is φ = 1227801600.

The previous prime is 1964974447. The next prime is 1964974481. The reversal of 1964974461 is 1644794691.

It is not a de Polignac number, because 1964974461 - 2⁹ = 1964973949 is a prime.

It is a super-2 number, since 2×1964974461² = 7722249264764481042, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964974411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67645 + ... + 92226.

It is an arithmetic number, because the mean of its divisors is an integer number (174100608).

Almost surely, 2^1964974461 is an apocalyptic number.

It is an amenable number.

1964974461 is a deficient number, since it is larger than the sum of its proper divisors (820635267).

1964974461 is a wasteful number, since it uses less digits than its factorization.

1964974461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160132.

The product of its digits is 1306368, while the sum is 51.

The square root of 1964974461 is about 44328.0324512605. The cubic root of 1964974461 is about 1252.5227900124.

The spelling of 1964974461 in words is "one billion, nine hundred sixty-four million, nine hundred seventy-four thousand, four hundred sixty-one".