77868152533 has 8 divisors (see below), whose sum is σ = 78952198400. Its totient is φ = 76784575968.

The previous prime is 77868152489. The next prime is 77868152587. The reversal of 77868152533 is 33525186877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77868152533 - 2³³ = 69278217941 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 (77868182533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223678 + ... + 453616.

It is an arithmetic number, because the mean of its divisors is an integer number (9869024800).

Almost surely, 2^77868152533 is an apocalyptic number.

77868152533 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

77868152533 is a deficient number, since it is larger than the sum of its proper divisors (1084045867).

77868152533 is a wasteful number, since it uses less digits than its factorization.

77868152533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234651.

The product of its digits is 8467200, while the sum is 55.

The spelling of 77868152533 in words is "seventy-seven billion, eight hundred sixty-eight million, one hundred fifty-two thousand, five hundred thirty-three".