10142938394 has 8 divisors (see below), whose sum is σ = 15218529588. Its totient is φ = 5070095200.

The previous prime is 10142938387. The next prime is 10142938411. The reversal of 10142938394 is 49383924101.

It can be written as a sum of positive squares in 2 ways, for example, as 10105275625 + 37662769 = 100525^2 + 6137^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677747 + ... + 692550.

Almost surely, 2^10142938394 is an apocalyptic number.

10142938394 is a deficient number, since it is larger than the sum of its proper divisors (5075591194).

10142938394 is a wasteful number, since it uses less digits than its factorization.

10142938394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374000.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 10142938394 in words is "ten billion, one hundred forty-two million, nine hundred thirty-eight thousand, three hundred ninety-four".