78672631151 has 4 divisors (see below), whose sum is σ = 80157020472. Its totient is φ = 77188241832.

The previous prime is 78672631133. The next prime is 78672631207. The reversal of 78672631151 is 15113627687.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15113627687 = 31 ⋅487536377.

It is a cyclic number.

It is not a de Polignac number, because 78672631151 - 2⁶ = 78672631087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78672631096 and 78672631105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78672631111) 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, 742194581 + ... + 742194686.

It is an arithmetic number, because the mean of its divisors is an integer number (20039255118).

Almost surely, 2^78672631151 is an apocalyptic number.

78672631151 is a deficient number, since it is larger than the sum of its proper divisors (1484389321).

78672631151 is a wasteful number, since it uses less digits than its factorization.

78672631151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484389320.

The product of its digits is 423360, while the sum is 47.

The spelling of 78672631151 in words is "seventy-eight billion, six hundred seventy-two million, six hundred thirty-one thousand, one hundred fifty-one".