15274908881 has 2 divisors, whose sum is σ = 15274908882. Its totient is φ = 15274908880.

The previous prime is 15274908823. The next prime is 15274908919. The reversal of 15274908881 is 18880947251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14621646400 + 653262481 = 120920^2 + 25559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15274908881 is a prime.

It is a super-2 number, since 2×15274908881² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15274908581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7637454440 + 7637454441.

It is an arithmetic number, because the mean of its divisors is an integer number (7637454441).

Almost surely, 2^15274908881 is an apocalyptic number.

It is an amenable number.

15274908881 is a deficient number, since it is larger than the sum of its proper divisors (1).

15274908881 is an equidigital number, since it uses as much as digits as its factorization.

15274908881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 15274908881 in words is "fifteen billion, two hundred seventy-four million, nine hundred eight thousand, eight hundred eighty-one".