151786638151 has 4 divisors (see below), whose sum is σ = 159775408600. Its totient is φ = 143797867704.

The previous prime is 151786638139. The next prime is 151786638161. The reversal of 151786638151 is 151836687151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151836687151 = 1153 ⋅131688367.

It is a cyclic number.

It is not a de Polignac number, because 151786638151 - 2¹³ = 151786629959 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 (151786638161) 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, 3994385196 + ... + 3994385233.

It is an arithmetic number, because the mean of its divisors is an integer number (39943852150).

Almost surely, 2^151786638151 is an apocalyptic number.

151786638151 is a deficient number, since it is larger than the sum of its proper divisors (7988770449).

151786638151 is an equidigital number, since it uses as much as digits as its factorization.

151786638151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7988770448.

The product of its digits is 1209600, while the sum is 52.

The spelling of 151786638151 in words is "one hundred fifty-one billion, seven hundred eighty-six million, six hundred thirty-eight thousand, one hundred fifty-one".