78119860 has 48 divisors (see below), whose sum is σ = 201914496. Its totient is φ = 24723072.

The previous prime is 78119851. The next prime is 78119897. The reversal of 78119860 is 6891187.

It is a super-2 number, since 2×78119860² = 12205425052839200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19642 + ... + 23281.

It is an arithmetic number, because the mean of its divisors is an integer number (4206552).

Almost surely, 2^78119860 is an apocalyptic number.

78119860 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78119860 is an abundant number, since it is smaller than the sum of its proper divisors (123794636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78119860 is a wasteful number, since it uses less digits than its factorization.

78119860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42952 (or 42950 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 78119860 is about 8838.5439977408. The cubic root of 78119860 is about 427.4846112354.

It can be divided in two parts, 7811 and 9860, that added together give a palindrome (17671).

The spelling of 78119860 in words is "seventy-eight million, one hundred nineteen thousand, eight hundred sixty".