151923778813 has 4 divisors (see below), whose sum is σ = 151995748608. Its totient is φ = 151851809020.

The previous prime is 151923778793. The next prime is 151923778823. The reversal of 151923778813 is 318877329151.

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 151923778813 - 2⁵ = 151923778781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151923778823) 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, 35981731 + ... + 35985952.

It is an arithmetic number, because the mean of its divisors is an integer number (37998937152).

Almost surely, 2^151923778813 is an apocalyptic number.

It is an amenable number.

151923778813 is a deficient number, since it is larger than the sum of its proper divisors (71969795).

151923778813 is an equidigital number, since it uses as much as digits as its factorization.

151923778813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71969794.

The product of its digits is 2540160, while the sum is 55.

The spelling of 151923778813 in words is "one hundred fifty-one billion, nine hundred twenty-three million, seven hundred seventy-eight thousand, eight hundred thirteen".