235819930649 has 4 divisors (see below), whose sum is σ = 246072971136. Its totient is φ = 225566890164.

The previous prime is 235819930639. The next prime is 235819930679. The reversal of 235819930649 is 946039918532.

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 235819930649 - 2⁸ = 235819930393 is a prime.

It is a super-2 number, since 2×235819930649² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (235819930639) 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, 5126520209 + ... + 5126520254.

It is an arithmetic number, because the mean of its divisors is an integer number (61518242784).

Almost surely, 2^235819930649 is an apocalyptic number.

It is an amenable number.

235819930649 is a deficient number, since it is larger than the sum of its proper divisors (10253040487).

235819930649 is a wasteful number, since it uses less digits than its factorization.

235819930649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253040486.

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 235819930649 in words is "two hundred thirty-five billion, eight hundred nineteen million, nine hundred thirty thousand, six hundred forty-nine".