63194247942 has 64 divisors (see below), whose sum is σ = 149780966400. Its totient is φ = 17391346560.

The previous prime is 63194247869. The next prime is 63194247943. The reversal of 63194247942 is 24974249136.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63194247943) 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, 451159 + ... + 574397.

It is an arithmetic number, because the mean of its divisors is an integer number (2340327600).

Almost surely, 2^63194247942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63194247942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74890483200).

63194247942 is an abundant number, since it is smaller than the sum of its proper divisors (86586718458).

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

63194247942 is a wasteful number, since it uses less digits than its factorization.

63194247942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123701.

The product of its digits is 2612736, while the sum is 51.

The spelling of 63194247942 in words is "sixty-three billion, one hundred ninety-four million, two hundred forty-seven thousand, nine hundred forty-two".