1971963313962 has 32 divisors (see below), whose sum is σ = 4010911660224. Its totient is φ = 646169462400.

The previous prime is 1971963313961. The next prime is 1971963313963. The reversal of 1971963313962 is 2693133691791.

It is an interprime number because it is at equal distance from previous prime (1971963313961) and next prime (1971963313963).

It is a super-2 number, since 2×1971963313962² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1971963313896 and 1971963313905.

It is not an unprimeable number, because it can be changed into a prime (1971963313961) 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, 935448 + ... + 2195219.

It is an arithmetic number, because the mean of its divisors is an integer number (125340989382).

Almost surely, 2^{1971963313962} is an apocalyptic number.

1971963313962 is an abundant number, since it is smaller than the sum of its proper divisors (2038948346262).

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

1971963313962 is a wasteful number, since it uses less digits than its factorization.

1971963313962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132454.

The product of its digits is 9920232, while the sum is 60.

The spelling of 1971963313962 in words is "one trillion, nine hundred seventy-one billion, nine hundred sixty-three million, three hundred thirteen thousand, nine hundred sixty-two".