1201091672732 has 24 divisors (see below), whose sum is σ = 2402701652064. Its totient is φ = 514642508352.

The previous prime is 1201091672689. The next prime is 1201091672741. The reversal of 1201091672732 is 2372761901021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201091672732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4495583 + ... + 4755254.

It is an arithmetic number, because the mean of its divisors is an integer number (100112568836).

Almost surely, 2^{1201091672732} is an apocalyptic number.

It is an amenable number.

1201091672732 is an abundant number, since it is smaller than the sum of its proper divisors (1201609979332).

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

1201091672732 is a wasteful number, since it uses less digits than its factorization.

1201091672732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9255485 (or 9255483 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 1201091672732 in words is "one trillion, two hundred one billion, ninety-one million, six hundred seventy-two thousand, seven hundred thirty-two".