1992621524650 has 12 divisors (see below), whose sum is σ = 3706276035942. Its totient is φ = 797048609840.

The previous prime is 1992621524633. The next prime is 1992621524681. The reversal of 1992621524650 is 564251262991.

It can be written as a sum of positive squares in 3 ways, for example, as 1698338059209 + 294283465441 = 1303203^2 + 542479^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19926215197 + ... + 19926215296.

Almost surely, 2^{1992621524650} is an apocalyptic number.

1992621524650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992621524650 is a deficient number, since it is larger than the sum of its proper divisors (1713654511292).

1992621524650 is a wasteful number, since it uses less digits than its factorization.

1992621524650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39852430505 (or 39852430500 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 1992621524650 in words is "one trillion, nine hundred ninety-two billion, six hundred twenty-one million, five hundred twenty-four thousand, six hundred fifty".