85457082490 has 60 divisors (see below), whose sum is σ = 166946064066. Its totient is φ = 31495699872.

The previous prime is 85457082457. The next prime is 85457082517. The reversal of 85457082490 is 9428075458.

It can be written as a sum of positive squares in 5 ways, for example, as 16806270321 + 68650812169 = 129639^2 + 262013^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 156228397 + ... + 156228943.

Almost surely, 2^85457082490 is an apocalyptic number.

85457082490 is a deficient number, since it is larger than the sum of its proper divisors (81488981576).

85457082490 is an frugal number, since it uses more digits than its factorization.

85457082490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 85457082490 in words is "eighty-five billion, four hundred fifty-seven million, eighty-two thousand, four hundred ninety".