77860405876862 has 48 divisors (see below), whose sum is σ = 140426086641840. Its totient is φ = 32265416332800.

The previous prime is 77860405876789. The next prime is 77860405876871. The reversal of 77860405876862 is 26867850406877.

It is a super-3 number, since 3×77860405876862³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77860405876862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110024339 + ... + 110729742.

It is an arithmetic number, because the mean of its divisors is an integer number (2925543471705).

Almost surely, 2^{77860405876862} is an apocalyptic number.

77860405876862 is a deficient number, since it is larger than the sum of its proper divisors (62565680764978).

77860405876862 is a wasteful number, since it uses less digits than its factorization.

77860405876862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220754217 (or 220754210 counting only the distinct ones).

The product of its (nonzero) digits is 1517322240, while the sum is 74.

The spelling of 77860405876862 in words is "seventy-seven trillion, eight hundred sixty billion, four hundred five million, eight hundred seventy-six thousand, eight hundred sixty-two".