78031906284 has 48 divisors (see below), whose sum is σ = 192369945600. Its totient is φ = 24550030656.

The previous prime is 78031906283. The next prime is 78031906291. The reversal of 78031906284 is 48260913087.

It is not an unprimeable number, because it can be changed into a prime (78031906283) 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, 574812 + ... + 697475.

It is an arithmetic number, because the mean of its divisors is an integer number (4007707200).

Almost surely, 2^78031906284 is an apocalyptic number.

It is an amenable number.

78031906284 is an abundant number, since it is smaller than the sum of its proper divisors (114338039316).

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

78031906284 is a wasteful number, since it uses less digits than its factorization.

78031906284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272582 (or 1272580 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 78031906284 in words is "seventy-eight billion, thirty-one million, nine hundred six thousand, two hundred eighty-four".