15400353121004 has 12 divisors (see below), whose sum is σ = 26965499596728. Its totient is φ = 7695924664800.

The previous prime is 15400353120991. The next prime is 15400353121093. The reversal of 15400353121004 is 40012135300451.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062965777 + ... + 1062980264.

It is an arithmetic number, because the mean of its divisors is an integer number (2247124966394).

Almost surely, 2^{15400353121004} is an apocalyptic number.

It is an amenable number.

15400353121004 is a deficient number, since it is larger than the sum of its proper divisors (11565146475724).

15400353121004 is a wasteful number, since it uses less digits than its factorization.

15400353121004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125947856 (or 2125947854 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 15400353121004 its reverse (40012135300451), we get a palindrome (55412488421455).

The spelling of 15400353121004 in words is "fifteen trillion, four hundred billion, three hundred fifty-three million, one hundred twenty-one thousand, four".