33678992980 has 24 divisors (see below), whose sum is σ = 71134712712. Its totient is φ = 13393725312.

The previous prime is 33678992947. The next prime is 33678992987. The reversal of 33678992980 is 8929987633.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7216162704 + 26462830276 = 84948^2 + 162674^2 .

It is a super-2 number, since 2×33678992980² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33678992987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4863447 + ... + 4870366.

It is an arithmetic number, because the mean of its divisors is an integer number (2963946363).

Almost surely, 2^33678992980 is an apocalyptic number.

It is an amenable number.

33678992980 is an abundant number, since it is smaller than the sum of its proper divisors (37455719732).

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

33678992980 is a wasteful number, since it uses less digits than its factorization.

33678992980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733995 (or 9733993 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 33678992980 in words is "thirty-three billion, six hundred seventy-eight million, nine hundred ninety-two thousand, nine hundred eighty".