33397756890 has 16 divisors (see below), whose sum is σ = 80154616608. Its totient is φ = 8906068496.

The previous prime is 33397756877. The next prime is 33397756927. The reversal of 33397756890 is 9865779333.

It is a super-2 number, since 2×33397756890² (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, 556629252 + ... + 556629311.

It is an arithmetic number, because the mean of its divisors is an integer number (5009663538).

Almost surely, 2^33397756890 is an apocalyptic number.

33397756890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33397756890 is an abundant number, since it is smaller than the sum of its proper divisors (46756859718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33397756890 is a wasteful number, since it uses less digits than its factorization.

33397756890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113258573.

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 33397756890 in words is "thirty-three billion, three hundred ninety-seven million, seven hundred fifty-six thousand, eight hundred ninety".