29190787920 has 480 divisors, whose sum is σ = 117096505344. Its totient is φ = 6376320000.

The previous prime is 29190787891. The next prime is 29190787937. The reversal of 29190787920 is 2978709192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12966795 + ... + 12969045.

Almost surely, 2^29190787920 is an apocalyptic number.

29190787920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29190787920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58548252672).

29190787920 is an abundant number, since it is smaller than the sum of its proper divisors (87905717424).

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

29190787920 is a wasteful number, since it uses less digits than its factorization.

29190787920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2382 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The spelling of 29190787920 in words is "twenty-nine billion, one hundred ninety million, seven hundred eighty-seven thousand, nine hundred twenty".