240819672137 has 4 divisors (see below), whose sum is σ = 262712369616. Its totient is φ = 218926974660.

The previous prime is 240819672127. The next prime is 240819672143. The reversal of 240819672137 is 731276918042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240819672137 - 2⁸ = 240819671881 is a prime.

It is a super-2 number, since 2×240819672137² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240819672127) 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, 10946348723 + ... + 10946348744.

It is an arithmetic number, because the mean of its divisors is an integer number (65678092404).

Almost surely, 2^240819672137 is an apocalyptic number.

It is an amenable number.

240819672137 is a deficient number, since it is larger than the sum of its proper divisors (21892697479).

240819672137 is a wasteful number, since it uses less digits than its factorization.

240819672137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21892697478.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 240819672137 in words is "two hundred forty billion, eight hundred nineteen million, six hundred seventy-two thousand, one hundred thirty-seven".