29226687440640 has 144 divisors (see below), whose sum is σ = 93506212415616. Its totient is φ = 7780133376000.

The previous prime is 29226687440627. The next prime is 29226687440663. The reversal of 29226687440640 is 4604478662292.

It is a happy number.

It is a super-3 number, since 3×29226687440640³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4472086 + ... + 8857365.

Almost surely, 2^{29226687440640} is an apocalyptic number.

29226687440640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29226687440640 is an abundant number, since it is smaller than the sum of its proper divisors (64279524974976).

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

29226687440640 is a wasteful number, since it uses less digits than its factorization.

29226687440640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13330046 (or 13330032 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 60.

The spelling of 29226687440640 in words is "twenty-nine trillion, two hundred twenty-six billion, six hundred eighty-seven million, four hundred forty thousand, six hundred forty".