7974149553 has 12 divisors (see below), whose sum is σ = 11656990800. Its totient is φ = 5252049816.

The previous prime is 7974149549. The next prime is 7974149563. The reversal of 7974149553 is 3559414797.

7974149553 is a `hidden beast` number, since 7 + 9 + 7 + 41 + 49 + 553 = 666.

It is not a de Polignac number, because 7974149553 - 2² = 7974149549 is a prime.

It is a super-2 number, since 2×7974149553² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7974149553.

It is not an unprimeable number, because it can be changed into a prime (7974149563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5336703 + ... + 5338196.

It is an arithmetic number, because the mean of its divisors is an integer number (971415900).

Almost surely, 2^7974149553 is an apocalyptic number.

It is an amenable number.

7974149553 is a deficient number, since it is larger than the sum of its proper divisors (3682841247).

7974149553 is a wasteful number, since it uses less digits than its factorization.

7974149553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10674988 (or 10674985 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 54.

The square root of 7974149553 is about 89298.0937814464. The cubic root of 7974149553 is about 1997.8434716118.

The spelling of 7974149553 in words is "seven billion, nine hundred seventy-four million, one hundred forty-nine thousand, five hundred fifty-three".