151378662639 has 4 divisors (see below), whose sum is σ = 201838216856. Its totient is φ = 100919108424.

The previous prime is 151378662493. The next prime is 151378662683. The reversal of 151378662639 is 936266873151.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 151378662639 - 2¹¹ = 151378660591 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 (151378652639) 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, 25229777104 + ... + 25229777109.

It is an arithmetic number, because the mean of its divisors is an integer number (50459554214).

Almost surely, 2^151378662639 is an apocalyptic number.

151378662639 is a deficient number, since it is larger than the sum of its proper divisors (50459554217).

151378662639 is an equidigital number, since it uses as much as digits as its factorization.

151378662639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50459554216.

The product of its digits is 9797760, while the sum is 57.

The spelling of 151378662639 in words is "one hundred fifty-one billion, three hundred seventy-eight million, six hundred sixty-two thousand, six hundred thirty-nine".