77318268151 has 4 divisors (see below), whose sum is σ = 79407951112. Its totient is φ = 75228585192.

The previous prime is 77318268121. The next prime is 77318268193. The reversal of 77318268151 is 15186281377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15186281377 = 71 ⋅213891287.

It is a cyclic number.

It is not a de Polignac number, because 77318268151 - 2⁵ = 77318268119 is a prime.

It is a super-2 number, since 2×77318268151² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77318268095 and 77318268104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77318268101) 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, 1044841425 + ... + 1044841498.

It is an arithmetic number, because the mean of its divisors is an integer number (19851987778).

Almost surely, 2^77318268151 is an apocalyptic number.

77318268151 is a deficient number, since it is larger than the sum of its proper divisors (2089682961).

77318268151 is a wasteful number, since it uses less digits than its factorization.

77318268151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089682960.

The product of its digits is 564480, while the sum is 49.

The spelling of 77318268151 in words is "seventy-seven billion, three hundred eighteen million, two hundred sixty-eight thousand, one hundred fifty-one".