27431301051 has 64 divisors (see below), whose sum is σ = 50924712960. Its totient is φ = 14177479680.

The previous prime is 27431301013. The next prime is 27431301067. The reversal of 27431301051 is 15010313472.

It is not a de Polignac number, because 27431301051 - 2¹⁵ = 27431268283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (27431301011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 376075 + ... + 443051.

It is an arithmetic number, because the mean of its divisors is an integer number (795698640).

Almost surely, 2^27431301051 is an apocalyptic number.

27431301051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27431301051 is a deficient number, since it is larger than the sum of its proper divisors (23493411909).

27431301051 is a wasteful number, since it uses less digits than its factorization.

27431301051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67201 (or 67195 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 27431301051 in words is "twenty-seven billion, four hundred thirty-one million, three hundred one thousand, fifty-one".