78278980558 has 8 divisors (see below), whose sum is σ = 117751102128. Its totient is φ = 39028613184.

The previous prime is 78278980547. The next prime is 78278980579. The reversal of 78278980558 is 85508987287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×78278980558³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 78278980493 and 78278980502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55437666 + ... + 55439077.

It is an arithmetic number, because the mean of its divisors is an integer number (14718887766).

Almost surely, 2^78278980558 is an apocalyptic number.

78278980558 is a deficient number, since it is larger than the sum of its proper divisors (39472121570).

78278980558 is a wasteful number, since it uses less digits than its factorization.

78278980558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110877098.

The product of its (nonzero) digits is 90316800, while the sum is 67.

The spelling of 78278980558 in words is "seventy-eight billion, two hundred seventy-eight million, nine hundred eighty thousand, five hundred fifty-eight".