4149991251495 has 40 divisors (see below), whose sum is σ = 7439402702160. Its totient is φ = 2213281324800.

The previous prime is 4149991251481. The next prime is 4149991251499. The reversal of 4149991251495 is 5941521999414.

4149991251495 is a `hidden beast` number, since 4 + 1 + 4 + 9 + 9 + 91 + 2 + 51 + 495 = 666.

It is not a de Polignac number, because 4149991251495 - 2⁸ = 4149991251239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4149991251499) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27302616 + ... + 27454194.

It is an arithmetic number, because the mean of its divisors is an integer number (185985067554).

Almost surely, 2^{4149991251495} is an apocalyptic number.

4149991251495 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4149991251495 is a deficient number, since it is larger than the sum of its proper divisors (3289411450665).

4149991251495 is a wasteful number, since it uses less digits than its factorization.

4149991251495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219197 (or 219188 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 63.

The spelling of 4149991251495 in words is "four trillion, one hundred forty-nine billion, nine hundred ninety-one million, two hundred fifty-one thousand, four hundred ninety-five".