15401401450 has 48 divisors (see below), whose sum is σ = 30120590016. Its totient is φ = 5847670400.

The previous prime is 15401401439. The next prime is 15401401459. The reversal of 15401401450 is 5410410451.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (15401401459) 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, 99534 + ... + 201766.

It is an arithmetic number, because the mean of its divisors is an integer number (627512292).

Almost surely, 2^15401401450 is an apocalyptic number.

15401401450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15401401450 is a deficient number, since it is larger than the sum of its proper divisors (14719188566).

15401401450 is a wasteful number, since it uses less digits than its factorization.

15401401450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102399 (or 102394 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Subtracting from 15401401450 its reverse (5410410451), we obtain a palindrome (9990990999).

The spelling of 15401401450 in words is "fifteen billion, four hundred one million, four hundred one thousand, four hundred fifty".