33408631087 has 16 divisors (see below), whose sum is σ = 38002843648. Its totient is φ = 29149878240.

The previous prime is 33408631051. The next prime is 33408631099. The reversal of 33408631087 is 78013680433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33408631087 is a prime.

It is a super-2 number, since 2×33408631087² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33408631007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946623 + ... + 981280.

It is an arithmetic number, because the mean of its divisors is an integer number (2375177728).

Almost surely, 2^33408631087 is an apocalyptic number.

33408631087 is a deficient number, since it is larger than the sum of its proper divisors (4594212561).

33408631087 is a wasteful number, since it uses less digits than its factorization.

33408631087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927990.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 33408631087 in words is "thirty-three billion, four hundred eight million, six hundred thirty-one thousand, eighty-seven".