1151805794472 has 24 divisors (see below), whose sum is σ = 3119474026890. Its totient is φ = 383935264800.

The previous prime is 1151805794471. The next prime is 1151805794473. The reversal of 1151805794472 is 2744975081511.

1151805794472 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 80 + 5 + 7 + 94 + 472 = 666.

It is an interprime number because it is at equal distance from previous prime (1151805794471) and next prime (1151805794473).

It can be written as a sum of positive squares in only one way, i.e., 1127729306916 + 24076487556 = 1061946^2 + 155166^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (1151805794471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7998651279 + ... + 7998651422.

Almost surely, 2^{1151805794472} is an apocalyptic number.

1151805794472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1151805794472 is an abundant number, since it is smaller than the sum of its proper divisors (1967668232418).

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

1151805794472 is a wasteful number, since it uses less digits than its factorization.

1151805794472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15997302713 (or 15997302706 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 1151805794472 in words is "one trillion, one hundred fifty-one billion, eight hundred five million, seven hundred ninety-four thousand, four hundred seventy-two".