77800237010813 has 16 divisors (see below), whose sum is σ = 79436188970880. Its totient is φ = 76180720402944.

The previous prime is 77800237010777. The next prime is 77800237010849. The reversal of 77800237010813 is 31801073200877.

It is an interprime number because it is at equal distance from previous prime (77800237010777) and next prime (77800237010849).

It is a cyclic number.

It is not a de Polignac number, because 77800237010813 - 2²⁴ = 77800220233597 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 (77800237090813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7377845 + ... + 14492517.

It is an arithmetic number, because the mean of its divisors is an integer number (4964761810680).

Almost surely, 2^{77800237010813} is an apocalyptic number.

77800237010813 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

77800237010813 is a deficient number, since it is larger than the sum of its proper divisors (1635951960067).

77800237010813 is a wasteful number, since it uses less digits than its factorization.

77800237010813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115828.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 77800237010813 in words is "seventy-seven trillion, eight hundred billion, two hundred thirty-seven million, ten thousand, eight hundred thirteen".