137423650499 has 4 divisors (see below), whose sum is σ = 145507394664. Its totient is φ = 129339906336.

The previous prime is 137423650493. The next prime is 137423650541. The reversal of 137423650499 is 994056324731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994056324731 = 179 ⋅5553387289.

It is a cyclic number.

It is not a de Polignac number, because 137423650499 - 2¹² = 137423646403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137423650499.

It is not an unprimeable number, because it can be changed into a prime (137423650493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4041872057 + ... + 4041872090.

It is an arithmetic number, because the mean of its divisors is an integer number (36376848666).

Almost surely, 2^137423650499 is an apocalyptic number.

137423650499 is a deficient number, since it is larger than the sum of its proper divisors (8083744165).

137423650499 is an equidigital number, since it uses as much as digits as its factorization.

137423650499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8083744164.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 137423650499 in words is "one hundred thirty-seven billion, four hundred twenty-three million, six hundred fifty thousand, four hundred ninety-nine".