15400423312 has 10 divisors (see below), whose sum is σ = 29838320198. Its totient is φ = 7700211648.

The previous prime is 15400423289. The next prime is 15400423373. The reversal of 15400423312 is 21332400451.

It can be written as a sum of positive squares in only one way, i.e., 8360542096 + 7039881216 = 91436^2 + 83904^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481263213 + ... + 481263244.

Almost surely, 2^15400423312 is an apocalyptic number.

It is an amenable number.

15400423312 is a deficient number, since it is larger than the sum of its proper divisors (14437896886).

15400423312 is an equidigital number, since it uses as much as digits as its factorization.

15400423312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962526465 (or 962526459 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 15400423312 its reverse (21332400451), we get a palindrome (36732823763).

The spelling of 15400423312 in words is "fifteen billion, four hundred million, four hundred twenty-three thousand, three hundred twelve".