19142698502 has 4 divisors (see below), whose sum is σ = 28714047756. Its totient is φ = 9571349250.

The previous prime is 19142698499. The next prime is 19142698577. The reversal of 19142698502 is 20589624191.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4785674624 + ... + 4785674627.

It is an arithmetic number, because the mean of its divisors is an integer number (7178511939).

Almost surely, 2^19142698502 is an apocalyptic number.

19142698502 is a deficient number, since it is larger than the sum of its proper divisors (9571349254).

19142698502 is an equidigital number, since it uses as much as digits as its factorization.

19142698502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571349253.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 19142698502 in words is "nineteen billion, one hundred forty-two million, six hundred ninety-eight thousand, five hundred two".