85028021452 has 12 divisors (see below), whose sum is σ = 162326222856. Its totient is φ = 38649100640.

The previous prime is 85028021411. The next prime is 85028021473. The reversal of 85028021452 is 25412082058.

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, 966227473 + ... + 966227560.

It is an arithmetic number, because the mean of its divisors is an integer number (13527185238).

Almost surely, 2^85028021452 is an apocalyptic number.

It is an amenable number.

85028021452 is a deficient number, since it is larger than the sum of its proper divisors (77298201404).

85028021452 is a wasteful number, since it uses less digits than its factorization.

85028021452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932455048 (or 1932455046 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The spelling of 85028021452 in words is "eighty-five billion, twenty-eight million, twenty-one thousand, four hundred fifty-two".