13149257742 has 32 divisors (see below), whose sum is σ = 29225158560. Its totient is φ = 4382398080.

The previous prime is 13149257677. The next prime is 13149257747. The reversal of 13149257742 is 24775294131.

13149257742 is a `hidden beast` number, since 1 + 31 + 4 + 9 + 2 + 577 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13149257747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421308 + ... + 451440.

It is an arithmetic number, because the mean of its divisors is an integer number (913286205).

Almost surely, 2^13149257742 is an apocalyptic number.

13149257742 is an abundant number, since it is smaller than the sum of its proper divisors (16075900818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13149257742 is a wasteful number, since it uses less digits than its factorization.

13149257742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38225 (or 38219 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The spelling of 13149257742 in words is "thirteen billion, one hundred forty-nine million, two hundred fifty-seven thousand, seven hundred forty-two".