1999752343876 has 27 divisors (see below), whose sum is σ = 4070964717309. Its totient is φ = 857028234048.

The previous prime is 1999752343829. The next prime is 1999752343891. The reversal of 1999752343876 is 6783432579991.

The square root of 1999752343876 is 1414126.

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., 86510103876 + 1913242240000 = 294126^2 + 1383200^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1999752343799 and 1999752343808.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19747260 + ... + 19848268.

Almost surely, 2^{1999752343876} is an apocalyptic number.

1999752343876 is the 1414126-th square number.

It is an amenable number.

1999752343876 is an abundant number, since it is smaller than the sum of its proper divisors (2071212373433).

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

1999752343876 is an frugal number, since it uses more digits than its factorization.

1999752343876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202036 (or 101018 counting only the distinct ones).

The product of its digits is 617258880, while the sum is 73.

The spelling of 1999752343876 in words is "one trillion, nine hundred ninety-nine billion, seven hundred fifty-two million, three hundred forty-three thousand, eight hundred seventy-six".