29274336540 has 72 divisors (see below), whose sum is σ = 88812884160. Its totient is φ = 7805253504.

The previous prime is 29274336523. The next prime is 29274336541. The reversal of 29274336540 is 4563347292.

29274336540 is a `hidden beast` number, since 2 + 9 + 2 + 74 + 3 + 36 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29274336541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1988326 + ... + 2002994.

It is an arithmetic number, because the mean of its divisors is an integer number (1233512280).

Almost surely, 2^29274336540 is an apocalyptic number.

29274336540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29274336540 is an abundant number, since it is smaller than the sum of its proper divisors (59538547620).

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

29274336540 is a wasteful number, since it uses less digits than its factorization.

29274336540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25771 (or 25766 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 29274336540 in words is "twenty-nine billion, two hundred seventy-four million, three hundred thirty-six thousand, five hundred forty".