77953958259 has 8 divisors (see below), whose sum is σ = 108457681152. Its totient is φ = 49709770440.

The previous prime is 77953958249. The next prime is 77953958281. The reversal of 77953958259 is 95285935977.

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

It is not a de Polignac number, because 77953958259 - 2⁹ = 77953957747 is a prime.

It is a super-2 number, since 2×77953958259² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69), and also a Moran number because the ratio is a prime number: 1129767511 = 77953958259 / (7 + 7 + 9 + 5 + 3 + 9 + 5 + 8 + 2 + 5 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 77953958193 and 77953958202.

It is not an unprimeable number, because it can be changed into a prime (77953958249) 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, 564883687 + ... + 564883824.

It is an arithmetic number, because the mean of its divisors is an integer number (13557210144).

Almost surely, 2^77953958259 is an apocalyptic number.

77953958259 is a deficient number, since it is larger than the sum of its proper divisors (30503722893).

77953958259 is a wasteful number, since it uses less digits than its factorization.

77953958259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129767537.

The product of its digits is 214326000, while the sum is 69.

The spelling of 77953958259 in words is "seventy-seven billion, nine hundred fifty-three million, nine hundred fifty-eight thousand, two hundred fifty-nine".