78538562854 has 8 divisors (see below), whose sum is σ = 124737717528. Its totient is φ = 36959323680.

The previous prime is 78538562831. The next prime is 78538562863. The reversal of 78538562854 is 45826583587.

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

It is a junction number, because it is equal to n+sod(n) for n = 78538562792 and 78538562801.

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, 1154978832 + ... + 1154978899.

It is an arithmetic number, because the mean of its divisors is an integer number (15592214691).

Almost surely, 2^78538562854 is an apocalyptic number.

78538562854 is a deficient number, since it is larger than the sum of its proper divisors (46199154674).

78538562854 is a wasteful number, since it uses less digits than its factorization.

78538562854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309957750.

The product of its digits is 64512000, while the sum is 61.

The spelling of 78538562854 in words is "seventy-eight billion, five hundred thirty-eight million, five hundred sixty-two thousand, eight hundred fifty-four".