1987870701974 has 16 divisors (see below), whose sum is σ = 3078045204480. Its totient is φ = 961856714280.

The previous prime is 1987870701911. The next prime is 1987870701997. The reversal of 1987870701974 is 4791070787891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3972587 + ... + 4444905.

It is an arithmetic number, because the mean of its divisors is an integer number (192377825280).

Almost surely, 2^{1987870701974} is an apocalyptic number.

1987870701974 is a deficient number, since it is larger than the sum of its proper divisors (1090174502506).

1987870701974 is a wasteful number, since it uses less digits than its factorization.

1987870701974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540235.

The product of its (nonzero) digits is 49787136, while the sum is 68.

The spelling of 1987870701974 in words is "one trillion, nine hundred eighty-seven billion, eight hundred seventy million, seven hundred one thousand, nine hundred seventy-four".