29520142497 has 16 divisors (see below), whose sum is σ = 43740096960. Its totient is φ = 19677146400.

The previous prime is 29520142489. The next prime is 29520142499. The reversal of 29520142497 is 79424102592.

29520142497 is a `hidden beast` number, since 2 + 9 + 520 + 14 + 24 + 97 = 666.

It is not a de Polignac number, because 29520142497 - 2³ = 29520142489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29520142499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109797 + ... + 266637.

It is an arithmetic number, because the mean of its divisors is an integer number (2733756060).

Almost surely, 2^29520142497 is an apocalyptic number.

29520142497 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

29520142497 is a deficient number, since it is larger than the sum of its proper divisors (14219954463).

29520142497 is a wasteful number, since it uses less digits than its factorization.

29520142497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163821 (or 163815 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 29520142497 in words is "twenty-nine billion, five hundred twenty million, one hundred forty-two thousand, four hundred ninety-seven".