29318157390 has 32 divisors (see below), whose sum is σ = 70411195296. Its totient is φ = 7812884480.

The previous prime is 29318157373. The next prime is 29318157419. The reversal of 29318157390 is 9375181392.

It is a super-2 number, since 2×29318157390² (a number of 22 digits) contains 22 as substring.

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, 285507 + ... + 374366.

It is an arithmetic number, because the mean of its divisors is an integer number (2200349853).

Almost surely, 2^29318157390 is an apocalyptic number.

29318157390 is an abundant number, since it is smaller than the sum of its proper divisors (41093037906).

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

29318157390 is a wasteful number, since it uses less digits than its factorization.

29318157390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661364.

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 29318157390 in words is "twenty-nine billion, three hundred eighteen million, one hundred fifty-seven thousand, three hundred ninety".