1918063692 has 48 divisors (see below), whose sum is σ = 5265277920. Its totient is φ = 601744896.

The previous prime is 1918063691. The next prime is 1918063717. The reversal of 1918063692 is 2963608191.

It is a happy number.

1918063692 is a `hidden beast` number, since 1 + 9 + 1 + 8 + 0 + 636 + 9 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1918063691) 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, 520513 + ... + 524184.

It is an arithmetic number, because the mean of its divisors is an integer number (109693290).

Almost surely, 2^1918063692 is an apocalyptic number.

1918063692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1918063692 is an abundant number, since it is smaller than the sum of its proper divisors (3347214228).

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

1918063692 is a wasteful number, since it uses less digits than its factorization.

1918063692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044727 (or 1044719 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1918063692 is about 43795.7040358983. The cubic root of 1918063692 is about 1242.4750452394.

The spelling of 1918063692 in words is "one billion, nine hundred eighteen million, sixty-three thousand, six hundred ninety-two".