85978505154 has 16 divisors (see below), whose sum is σ = 171979843680. Its totient is φ = 28655696160.

The previous prime is 85978505153. The next prime is 85978505201. The reversal of 85978505154 is 45150587958.

It is a junction number, because it is equal to n+sod(n) for n = 85978505094 and 85978505103.

It is not an unprimeable number, because it can be changed into a prime (85978505153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902244 + ... + 992975.

It is an arithmetic number, because the mean of its divisors is an integer number (10748740230).

Almost surely, 2^85978505154 is an apocalyptic number.

85978505154 is an abundant number, since it is smaller than the sum of its proper divisors (86001338526).

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

85978505154 is a wasteful number, since it uses less digits than its factorization.

85978505154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902785.

The product of its (nonzero) digits is 10080000, while the sum is 57.

The spelling of 85978505154 in words is "eighty-five billion, nine hundred seventy-eight million, five hundred five thousand, one hundred fifty-four".