63854077950 has 240 divisors, whose sum is σ = 193228413840. Its totient is φ = 15540180480.

The previous prime is 63854077939. The next prime is 63854077999. The reversal of 63854077950 is 5977045836.

63854077950 is a `hidden beast` number, since 6 + 3 + 8 + 540 + 7 + 7 + 95 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4679037 + ... + 4692663.

It is an arithmetic number, because the mean of its divisors is an integer number (805118391).

Almost surely, 2^63854077950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63854077950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96614206920).

63854077950 is an abundant number, since it is smaller than the sum of its proper divisors (129374335890).

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

63854077950 is a wasteful number, since it uses less digits than its factorization.

63854077950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13753 (or 13739 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 63854077950 in words is "sixty-three billion, eight hundred fifty-four million, seventy-seven thousand, nine hundred fifty".