1147899931455 has 64 divisors (see below), whose sum is σ = 1854555918336. Its totient is φ = 606279168000.

The previous prime is 1147899931429. The next prime is 1147899931483. The reversal of 1147899931455 is 5541399987411.

It is not a de Polignac number, because 1147899931455 - 2⁶ = 1147899931391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 868962195 + ... + 868963515.

It is an arithmetic number, because the mean of its divisors is an integer number (28977436224).

Almost surely, 2^{1147899931455} is an apocalyptic number.

1147899931455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1147899931455 is a deficient number, since it is larger than the sum of its proper divisors (706655986881).

1147899931455 is a wasteful number, since it uses less digits than its factorization.

1147899931455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728.

The product of its digits is 48988800, while the sum is 66.

The spelling of 1147899931455 in words is "one trillion, one hundred forty-seven billion, eight hundred ninety-nine million, nine hundred thirty-one thousand, four hundred fifty-five".