29912979525 has 48 divisors (see below), whose sum is σ = 58102322880. Its totient is φ = 13387622400.

The previous prime is 29912979497. The next prime is 29912979553. The reversal of 29912979525 is 52597921992.

It is an interprime number because it is at equal distance from previous prime (29912979497) and next prime (29912979553).

It is not a de Polignac number, because 29912979525 - 2¹² = 29912975429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1383820 + ... + 1405269.

It is an arithmetic number, because the mean of its divisors is an integer number (1210465060).

Almost surely, 2^29912979525 is an apocalyptic number.

29912979525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29912979525 is a deficient number, since it is larger than the sum of its proper divisors (28189343355).

29912979525 is a wasteful number, since it uses less digits than its factorization.

29912979525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789126 (or 2789121 counting only the distinct ones).

The product of its digits is 9185400, while the sum is 60.

The spelling of 29912979525 in words is "twenty-nine billion, nine hundred twelve million, nine hundred seventy-nine thousand, five hundred twenty-five".