29921453001 has 32 divisors (see below), whose sum is σ = 49270343040. Its totient is φ = 17792049600.

The previous prime is 29921452999. The next prime is 29921453027. The reversal of 29921453001 is 10035412992.

29921453001 is a `hidden beast` number, since 29 + 92 + 14 + 530 + 0 + 1 = 666.

It is not a de Polignac number, because 29921453001 - 2¹ = 29921452999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29921453071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 934690 + ... + 966171.

It is an arithmetic number, because the mean of its divisors is an integer number (1539698220).

Almost surely, 2^29921453001 is an apocalyptic number.

It is an amenable number.

29921453001 is a deficient number, since it is larger than the sum of its proper divisors (19348890039).

29921453001 is a wasteful number, since it uses less digits than its factorization.

29921453001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900934 (or 1900928 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

Adding to 29921453001 its reverse (10035412992), we get a palindrome (39956865993).

The spelling of 29921453001 in words is "twenty-nine billion, nine hundred twenty-one million, four hundred fifty-three thousand, one".