29870772948 has 48 divisors (see below), whose sum is σ = 77464296000. Its totient is φ = 9954153504.

The previous prime is 29870772929. The next prime is 29870772949. The reversal of 29870772948 is 84927707892.

It is a super-2 number, since 2×29870772948² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29870772949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371538 + ... + 444726.

It is an arithmetic number, because the mean of its divisors is an integer number (1613839500).

Almost surely, 2^29870772948 is an apocalyptic number.

It is an amenable number.

29870772948 is an abundant number, since it is smaller than the sum of its proper divisors (47593523052).

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

29870772948 is a wasteful number, since it uses less digits than its factorization.

29870772948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76981 (or 76973 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The spelling of 29870772948 in words is "twenty-nine billion, eight hundred seventy million, seven hundred seventy-two thousand, nine hundred forty-eight".