1042719647698 has 4 divisors (see below), whose sum is σ = 1564079471550. Its totient is φ = 521359823848.

The previous prime is 1042719647623. The next prime is 1042719647707. The reversal of 1042719647698 is 8967469172401.

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

It can be written as a sum of positive squares in only one way, i.e., 1037694680929 + 5024966769 = 1018673^2 + 70887^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260679911923 + ... + 260679911926.

Almost surely, 2^{1042719647698} is an apocalyptic number.

1042719647698 is a deficient number, since it is larger than the sum of its proper divisors (521359823852).

1042719647698 is an equidigital number, since it uses as much as digits as its factorization.

1042719647698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521359823851.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 1042719647698 in words is "one trillion, forty-two billion, seven hundred nineteen million, six hundred forty-seven thousand, six hundred ninety-eight".