78157482020578 has 16 divisors (see below), whose sum is σ = 123592888525824. Its totient is φ = 37013495258880.

The previous prime is 78157482020557. The next prime is 78157482020591. The reversal of 78157482020578 is 87502028475187.

It is a super-2 number, since 2×78157482020578² (a number of 29 digits) contains 22 as substring.

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, 13410683775 + ... + 13410689602.

It is an arithmetic number, because the mean of its divisors is an integer number (7724555532864).

Almost surely, 2^{78157482020578} is an apocalyptic number.

78157482020578 is a deficient number, since it is larger than the sum of its proper divisors (45435406505246).

78157482020578 is a wasteful number, since it uses less digits than its factorization.

78157482020578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26821373457.

The product of its (nonzero) digits is 70246400, while the sum is 64.

The spelling of 78157482020578 in words is "seventy-eight trillion, one hundred fifty-seven billion, four hundred eighty-two million, twenty thousand, five hundred seventy-eight".