78427706754 has 16 divisors (see below), whose sum is σ = 158321353248. Its totient is φ = 25898245632.

The previous prime is 78427706701. The next prime is 78427706783. The reversal of 78427706754 is 45760772487.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78427706694 and 78427706703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61080127 + ... + 61081410.

It is an arithmetic number, because the mean of its divisors is an integer number (9895084578).

Almost surely, 2^78427706754 is an apocalyptic number.

78427706754 is an abundant number, since it is smaller than the sum of its proper divisors (79893646494).

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

78427706754 is a wasteful number, since it uses less digits than its factorization.

78427706754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122161649.

The product of its (nonzero) digits is 18439680, while the sum is 57.

The spelling of 78427706754 in words is "seventy-eight billion, four hundred twenty-seven million, seven hundred six thousand, seven hundred fifty-four".