85490158749 has 4 divisors (see below), whose sum is σ = 113986878336. Its totient is φ = 56993439164.

The previous prime is 85490158687. The next prime is 85490158777. The reversal of 85490158749 is 94785109458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85490158749 - 2¹² = 85490154653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85490158692 and 85490158701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85490158049) 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, 14248359789 + ... + 14248359794.

It is an arithmetic number, because the mean of its divisors is an integer number (28496719584).

Almost surely, 2^85490158749 is an apocalyptic number.

It is an amenable number.

85490158749 is a deficient number, since it is larger than the sum of its proper divisors (28496719587).

85490158749 is a wasteful number, since it uses less digits than its factorization.

85490158749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28496719586.

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 85490158749 in words is "eighty-five billion, four hundred ninety million, one hundred fifty-eight thousand, seven hundred forty-nine".