1867342037394 has 64 divisors (see below), whose sum is σ = 3786253092864. Its totient is φ = 613906947456.

The previous prime is 1867342037377. The next prime is 1867342037399. The reversal of 1867342037394 is 4937302437681.

It is a super-2 number, since 2×1867342037394² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1867342037399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449634822 + ... + 449638974.

It is an arithmetic number, because the mean of its divisors is an integer number (59160204576).

Almost surely, 2^{1867342037394} is an apocalyptic number.

1867342037394 is an abundant number, since it is smaller than the sum of its proper divisors (1918911055470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1867342037394 is a wasteful number, since it uses less digits than its factorization.

1867342037394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191.

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 1867342037394 in words is "one trillion, eight hundred sixty-seven billion, three hundred forty-two million, thirty-seven thousand, three hundred ninety-four".