15490331434 has 8 divisors (see below), whose sum is σ = 23240483460. Its totient is φ = 7743503616.

The previous prime is 15490331429. The next prime is 15490331443. The reversal of 15490331434 is 43413309451.

It can be written as a sum of positive squares in 2 ways, for example, as 15488549209 + 1782225 = 124453^2 + 1335^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 15490331393 and 15490331402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819369 + ... + 838060.

Almost surely, 2^15490331434 is an apocalyptic number.

15490331434 is a deficient number, since it is larger than the sum of its proper divisors (7750152026).

15490331434 is a wasteful number, since it uses less digits than its factorization.

15490331434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662104.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 15490331434 in words is "fifteen billion, four hundred ninety million, three hundred thirty-one thousand, four hundred thirty-four".