1961934972 has 24 divisors (see below), whose sum is σ = 4579636992. Its totient is φ = 653722800.

The previous prime is 1961934971. The next prime is 1961935033. The reversal of 1961934972 is 2794391691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961934971) 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, 1447 + ... + 62657.

It is an arithmetic number, because the mean of its divisors is an integer number (190818208).

Almost surely, 2^1961934972 is an apocalyptic number.

1961934972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1961934972 is an abundant number, since it is smaller than the sum of its proper divisors (2617702020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961934972 is a wasteful number, since it uses less digits than its factorization.

1961934972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63889 (or 63887 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 1961934972 is about 44293.7351326347. The cubic root of 1961934972 is about 1251.8766418557.

The spelling of 1961934972 in words is "one billion, nine hundred sixty-one million, nine hundred thirty-four thousand, nine hundred seventy-two".