19249534402 has 16 divisors (see below), whose sum is σ = 33002386560. Its totient is φ = 8249004288.

The previous prime is 19249534393. The next prime is 19249534411. The reversal of 19249534402 is 20443594291.

It is an interprime number because it is at equal distance from previous prime (19249534393) and next prime (19249534411).

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, 97923 + ... + 219289.

It is an arithmetic number, because the mean of its divisors is an integer number (2062649160).

Almost surely, 2^19249534402 is an apocalyptic number.

19249534402 is a deficient number, since it is larger than the sum of its proper divisors (13752852158).

19249534402 is a wasteful number, since it uses less digits than its factorization.

19249534402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132705.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 19249534402 in words is "nineteen billion, two hundred forty-nine million, five hundred thirty-four thousand, four hundred two".