1149546972672 has 240 divisors, whose sum is σ = 3845034116352. Its totient is φ = 323815403520.

The previous prime is 1149546972547. The next prime is 1149546972767. The reversal of 1149546972672 is 2762796459411.

1149546972672 is a `hidden beast` number, since 1 + 1 + 49 + 5 + 469 + 72 + 67 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2039203 + ... + 2541149.

Almost surely, 2^{1149546972672} is an apocalyptic number.

1149546972672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149546972672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1922517058176).

1149546972672 is an abundant number, since it is smaller than the sum of its proper divisors (2695487143680).

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

1149546972672 is an equidigital number, since it uses as much as digits as its factorization.

1149546972672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502049 (or 502030 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 1149546972672 in words is "one trillion, one hundred forty-nine billion, five hundred forty-six million, nine hundred seventy-two thousand, six hundred seventy-two".