29157404639 has 8 divisors (see below), whose sum is σ = 32036914560. Its totient is φ = 26316034200.

The previous prime is 29157404587. The next prime is 29157404657. The reversal of 29157404639 is 93640475192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29157404639 - 2¹² = 29157400543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29157404659) 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, 9533267 + ... + 9536324.

It is an arithmetic number, because the mean of its divisors is an integer number (4004614320).

Almost surely, 2^29157404639 is an apocalyptic number.

29157404639 is a deficient number, since it is larger than the sum of its proper divisors (2879509921).

29157404639 is a wasteful number, since it uses less digits than its factorization.

29157404639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19069741.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 29157404639 in words is "twenty-nine billion, one hundred fifty-seven million, four hundred four thousand, six hundred thirty-nine".