1988737371076 has 9 divisors (see below), whose sum is σ = 3480295335181. Its totient is φ = 994367275312.

The previous prime is 1988737371013. The next prime is 1988737371079. The reversal of 1988737371076 is 6701737378891.

The square root of 1988737371076 is 1410226.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 960184412100 + 1028552958976 = 979890^2 + 1014176^2 .

It is a super-2 number, since 2×1988737371076² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1988737371079) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2467896 + ... + 3173008.

Almost surely, 2^{1988737371076} is an apocalyptic number.

1988737371076 is the 1410226-th square number.

It is an amenable number.

1988737371076 is a deficient number, since it is larger than the sum of its proper divisors (1491557964105).

1988737371076 is an frugal number, since it uses more digits than its factorization.

1988737371076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410230 (or 705115 counting only the distinct ones).

The product of its (nonzero) digits is 74680704, while the sum is 67.

The spelling of 1988737371076 in words is "one trillion, nine hundred eighty-eight billion, seven hundred thirty-seven million, three hundred seventy-one thousand, seventy-six".