1042868469490 has 16 divisors (see below), whose sum is σ = 1880091748440. Its totient is φ = 416496609280.

The previous prime is 1042868469481. The next prime is 1042868469551. The reversal of 1042868469490 is 949648682401.

It can be written as a sum of positive squares in 4 ways, for example, as 912642034329 + 130226435161 = 955323^2 + 360869^2 .

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, 81340585 + ... + 81353404.

Almost surely, 2^{1042868469490} is an apocalyptic number.

1042868469490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1042868469490 is a deficient number, since it is larger than the sum of its proper divisors (837223278950).

1042868469490 is a wasteful number, since it uses less digits than its factorization.

1042868469490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162694637.

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 1042868469490 in words is "one trillion, forty-two billion, eight hundred sixty-eight million, four hundred sixty-nine thousand, four hundred ninety".