1961614358956 has 24 divisors (see below), whose sum is σ = 3923286567200. Its totient is φ = 840679471872.

The previous prime is 1961614358953. The next prime is 1961614358959. The reversal of 1961614358956 is 6598534161691.

It is an interprime number because it is at equal distance from previous prime (1961614358953) and next prime (1961614358959).

It is not an unprimeable number, because it can be changed into a prime (1961614358953) 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, 1563220 + ... + 2523268.

Almost surely, 2^{1961614358956} is an apocalyptic number.

It is an amenable number.

1961614358956 is an abundant number, since it is smaller than the sum of its proper divisors (1961672208244).

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

1961614358956 is a wasteful number, since it uses less digits than its factorization.

1961614358956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033033 (or 1033031 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 64.

The spelling of 1961614358956 in words is "one trillion, nine hundred sixty-one billion, six hundred fourteen million, three hundred fifty-eight thousand, nine hundred fifty-six".