20954269402 has 8 divisors (see below), whose sum is σ = 34288804512. Its totient is φ = 9524667900.

The previous prime is 20954269387. The next prime is 20954269403. The reversal of 20954269402 is 20496245902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20954269403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476233374 + ... + 476233417.

It is an arithmetic number, because the mean of its divisors is an integer number (4286100564).

Almost surely, 2^20954269402 is an apocalyptic number.

20954269402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20954269402 is a deficient number, since it is larger than the sum of its proper divisors (13334535110).

20954269402 is a wasteful number, since it uses less digits than its factorization.

20954269402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952466804.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 20954269402 in words is "twenty billion, nine hundred fifty-four million, two hundred sixty-nine thousand, four hundred two".