76478777158 has 8 divisors (see below), whose sum is σ = 131106475152. Its totient is φ = 32776618776.

The previous prime is 76478777153. The next prime is 76478777191. The reversal of 76478777158 is 85177787467.

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 = 76478777093 and 76478777102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76478777153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731384885 + ... + 2731384912.

It is an arithmetic number, because the mean of its divisors is an integer number (16388309394).

Almost surely, 2^76478777158 is an apocalyptic number.

76478777158 is a deficient number, since it is larger than the sum of its proper divisors (54627697994).

76478777158 is a wasteful number, since it uses less digits than its factorization.

76478777158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462769806.

The product of its digits is 129077760, while the sum is 67.

The spelling of 76478777158 in words is "seventy-six billion, four hundred seventy-eight million, seven hundred seventy-seven thousand, one hundred fifty-eight".