33520873490 has 16 divisors (see below), whose sum is σ = 64978924248. Its totient is φ = 12376937856.

The previous prime is 33520873487. The next prime is 33520873517. The reversal of 33520873490 is 9437802533.

It can be written as a sum of positive squares in 4 ways, for example, as 25937424601 + 7583448889 = 161051^2 + 87083^2 .

It is a super-2 number, since 2×33520873490² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128926307 + ... + 128926566.

Almost surely, 2^33520873490 is an apocalyptic number.

33520873490 is a deficient number, since it is larger than the sum of its proper divisors (31458050758).

33520873490 is a wasteful number, since it uses less digits than its factorization.

33520873490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257852893.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 33520873490 in words is "thirty-three billion, five hundred twenty million, eight hundred seventy-three thousand, four hundred ninety".