13135737540 has 48 divisors (see below), whose sum is σ = 36785327040. Its totient is φ = 3502362240.

The previous prime is 13135737523. The next prime is 13135737541. The reversal of 13135737540 is 4573753131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13135737541) 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, 621466 + ... + 642254.

It is an arithmetic number, because the mean of its divisors is an integer number (766360980).

Almost surely, 2^13135737540 is an apocalyptic number.

13135737540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13135737540 is an abundant number, since it is smaller than the sum of its proper divisors (23649589500).

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

13135737540 is a wasteful number, since it uses less digits than its factorization.

13135737540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31332 (or 31330 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 39.

The spelling of 13135737540 in words is "thirteen billion, one hundred thirty-five million, seven hundred thirty-seven thousand, five hundred forty".