15423454421002 has 16 divisors (see below), whose sum is σ = 23272345807200. Its totient is φ = 7666035142480.

The previous prime is 15423454420991. The next prime is 15423454421051. The reversal of 15423454421002 is 20012445432451.

It is a super-2 number, since 2×15423454421002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6277249 + ... + 8381572.

It is an arithmetic number, because the mean of its divisors is an integer number (1454521612950).

Almost surely, 2^{15423454421002} is an apocalyptic number.

15423454421002 is a deficient number, since it is larger than the sum of its proper divisors (7848891386198).

15423454421002 is a wasteful number, since it uses less digits than its factorization.

15423454421002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14661941.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 15423454421002 its reverse (20012445432451), we get a palindrome (35435899853453).

The spelling of 15423454421002 in words is "fifteen trillion, four hundred twenty-three billion, four hundred fifty-four million, four hundred twenty-one thousand, two".