78558542162 has 8 divisors (see below), whose sum is σ = 118628671500. Its totient is φ = 39015651664.

The previous prime is 78558542143. The next prime is 78558542173. The reversal of 78558542162 is 26124585587.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78472256641 + 86285521 = 280129^2 + 9289^2 .

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

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, 131809337 + ... + 131809932.

Almost surely, 2^78558542162 is an apocalyptic number.

78558542162 is a deficient number, since it is larger than the sum of its proper divisors (40070129338).

78558542162 is a wasteful number, since it uses less digits than its factorization.

78558542162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263619420.

The product of its digits is 5376000, while the sum is 53.

The spelling of 78558542162 in words is "seventy-eight billion, five hundred fifty-eight million, five hundred forty-two thousand, one hundred sixty-two".