33401389492072 has 32 divisors (see below), whose sum is σ = 73320123280320. Its totient is φ = 13965737765760.

The previous prime is 33401389492061. The next prime is 33401389492139. The reversal of 33401389492072 is 27029498310433.

It is a super-2 number, since 2×33401389492072² (a number of 28 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, 7273819458 + ... + 7273824049.

It is an arithmetic number, because the mean of its divisors is an integer number (2291253852510).

Almost surely, 2^{33401389492072} is an apocalyptic number.

It is an amenable number.

33401389492072 is an abundant number, since it is smaller than the sum of its proper divisors (39918733788248).

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

33401389492072 is a wasteful number, since it uses less digits than its factorization.

33401389492072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14547643561 (or 14547643557 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 33401389492072 in words is "thirty-three trillion, four hundred one billion, three hundred eighty-nine million, four hundred ninety-two thousand, seventy-two".