77965473153 has 8 divisors (see below), whose sum is σ = 107307318016. Its totient is φ = 50300305200.

The previous prime is 77965473137. The next prime is 77965473169. The reversal of 77965473153 is 35137456977.

It is an interprime number because it is at equal distance from previous prime (77965473137) and next prime (77965473169).

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

It is not a de Polignac number, because 77965473153 - 2⁴ = 77965473137 is a prime.

It is a super-2 number, since 2×77965473153² (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 = 77965473093 and 77965473102.

It is not an unprimeable number, because it can be changed into a prime (77965473133) 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, 419169118 + ... + 419169303.

It is an arithmetic number, because the mean of its divisors is an integer number (13413414752).

Almost surely, 2^77965473153 is an apocalyptic number.

It is an amenable number.

77965473153 is a deficient number, since it is larger than the sum of its proper divisors (29341844863).

77965473153 is a wasteful number, since it uses less digits than its factorization.

77965473153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838338455.

The product of its digits is 16669800, while the sum is 57.

The spelling of 77965473153 in words is "seventy-seven billion, nine hundred sixty-five million, four hundred seventy-three thousand, one hundred fifty-three".