78293441964 has 48 divisors (see below), whose sum is σ = 188463715328. Its totient is φ = 25278568128.

The previous prime is 78293441959. The next prime is 78293441981. The reversal of 78293441964 is 46914439287.

It is a super-2 number, since 2×78293441964² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296362 + ... + 494385.

Almost surely, 2^78293441964 is an apocalyptic number.

78293441964 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

78293441964 is an abundant number, since it is smaller than the sum of its proper divisors (110170273364).

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

78293441964 is a wasteful number, since it uses less digits than its factorization.

78293441964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791014 (or 791012 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 57.

The spelling of 78293441964 in words is "seventy-eight billion, two hundred ninety-three million, four hundred forty-one thousand, nine hundred sixty-four".