1994659080976 has 15 divisors (see below), whose sum is σ = 3864662914933. Its totient is φ = 997326715840.

The previous prime is 1994659080971. The next prime is 1994659080979. The reversal of 1994659080976 is 6790809564991.

The square root of 1994659080976 is 1412324.

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., 1302967458576 + 691691622400 = 1141476^2 + 831680^2 .

It is a super-2 number, since 2×1994659080976² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1994659080899 and 1994659080908.

It is not an unprimeable number, because it can be changed into a prime (1994659080971) 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, 5472756 + ... + 5825836.

Almost surely, 2^{1994659080976} is an apocalyptic number.

1994659080976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1994659080976 is the 1412324-th square number.

It is an amenable number.

1994659080976 is a deficient number, since it is larger than the sum of its proper divisors (1870003833957).

1994659080976 is an frugal number, since it uses more digits than its factorization.

1994659080976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706170 (or 353083 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 73.

The spelling of 1994659080976 in words is "one trillion, nine hundred ninety-four billion, six hundred fifty-nine million, eighty thousand, nine hundred seventy-six".