1992815601 has 16 divisors (see below), whose sum is σ = 3056018304. Its totient is φ = 1131496704.

The previous prime is 1992815593. The next prime is 1992815603. The reversal of 1992815601 is 1065182991.

It is not a de Polignac number, because 1992815601 - 2³ = 1992815593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1992815603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298920 + ... + 305513.

It is an arithmetic number, because the mean of its divisors is an integer number (191001144).

Almost surely, 2^1992815601 is an apocalyptic number.

It is an amenable number.

1992815601 is a deficient number, since it is larger than the sum of its proper divisors (1063202703).

1992815601 is a wasteful number, since it uses less digits than its factorization.

1992815601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604600.

The product of its (nonzero) digits is 38880, while the sum is 42.

The square root of 1992815601 is about 44640.9632624566. The cubic root of 1992815601 is about 1258.4106105936.

The spelling of 1992815601 in words is "one billion, nine hundred ninety-two million, eight hundred fifteen thousand, six hundred one".