63193781942 has 16 divisors (see below), whose sum is σ = 95526585792. Its totient is φ = 31351649160.

The previous prime is 63193781939. The next prime is 63193781993. The reversal of 63193781942 is 24918739136.

It is a super-2 number, since 2×63193781942² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 3838733 + ... + 3855159.

It is an arithmetic number, because the mean of its divisors is an integer number (5970411612).

Almost surely, 2^63193781942 is an apocalyptic number.

63193781942 is a deficient number, since it is larger than the sum of its proper divisors (32332803850).

63193781942 is a wasteful number, since it uses less digits than its factorization.

63193781942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31243.

The product of its digits is 1959552, while the sum is 53.

The spelling of 63193781942 in words is "sixty-three billion, one hundred ninety-three million, seven hundred eighty-one thousand, nine hundred forty-two".