1972495966587 has 16 divisors (see below), whose sum is σ = 2648283440640. Its totient is φ = 1305866035872.

The previous prime is 1972495966579. The next prime is 1972495966603. The reversal of 1972495966587 is 7856695942791.

It is not a de Polignac number, because 1972495966587 - 2³ = 1972495966579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1972495966547) 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, 1040083 + ... + 2242044.

It is an arithmetic number, because the mean of its divisors is an integer number (165517715040).

Almost surely, 2^{1972495966587} is an apocalyptic number.

1972495966587 is a deficient number, since it is larger than the sum of its proper divisors (675787474053).

1972495966587 is a wasteful number, since it uses less digits than its factorization.

1972495966587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283522.

The product of its digits is 2057529600, while the sum is 78.

The spelling of 1972495966587 in words is "one trillion, nine hundred seventy-two billion, four hundred ninety-five million, nine hundred sixty-six thousand, five hundred eighty-seven".