21469502097 has 24 divisors (see below), whose sum is σ = 31225072320. Its totient is φ = 14214526560.

The previous prime is 21469502077. The next prime is 21469502101. The reversal of 21469502097 is 79020596412.

It is not a de Polignac number, because 21469502097 - 2⁷ = 21469501969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21469502057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5185054 + ... + 5189192.

It is an arithmetic number, because the mean of its divisors is an integer number (1301044680).

Almost surely, 2^21469502097 is an apocalyptic number.

It is an amenable number.

21469502097 is a deficient number, since it is larger than the sum of its proper divisors (9755570223).

21469502097 is a wasteful number, since it uses less digits than its factorization.

21469502097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7973 (or 7970 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 21469502097 in words is "twenty-one billion, four hundred sixty-nine million, five hundred two thousand, ninety-seven".