85515480357 has 16 divisors (see below), whose sum is σ = 114643496448. Its totient is φ = 56699463680.

The previous prime is 85515480329. The next prime is 85515480359. The reversal of 85515480357 is 75308451558.

It is a cyclic number.

It is not a de Polignac number, because 85515480357 - 2⁷ = 85515480229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85515480359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532357 + ... + 674117.

It is an arithmetic number, because the mean of its divisors is an integer number (7165218528).

Almost surely, 2^85515480357 is an apocalyptic number.

It is an amenable number.

85515480357 is a deficient number, since it is larger than the sum of its proper divisors (29128016091).

85515480357 is a wasteful number, since it uses less digits than its factorization.

85515480357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142860.

The product of its (nonzero) digits is 3360000, while the sum is 51.

The spelling of 85515480357 in words is "eighty-five billion, five hundred fifteen million, four hundred eighty thousand, three hundred fifty-seven".