85487955978458 has 8 divisors (see below), whose sum is σ = 139889382510240. Its totient is φ = 38858161808380.

The previous prime is 85487955978431. The next prime is 85487955978463.

85487955978458 is nontrivially palindromic in base 10.

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

It is a super-3 number, since 3×85487955978458³ (a number of 43 digits) contains 333 as substring.

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, 1942908090398 + ... + 1942908090441.

It is an arithmetic number, because the mean of its divisors is an integer number (17486172813780).

Almost surely, 2^{85487955978458} is an apocalyptic number.

85487955978458 is a deficient number, since it is larger than the sum of its proper divisors (54401426531782).

85487955978458 is a wasteful number, since it uses less digits than its factorization.

85487955978458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885816180852.

The product of its digits is 162570240000, while the sum is 92.

The spelling of 85487955978458 in words is "eighty-five trillion, four hundred eighty-seven billion, nine hundred fifty-five million, nine hundred seventy-eight thousand, four hundred fifty-eight".