63149668740 has 384 divisors, whose sum is σ = 204246282240. Its totient is φ = 16394451840.

The previous prime is 63149668739. The next prime is 63149668741. The reversal of 63149668740 is 4786694136.

63149668740 is a `hidden beast` number, since 6 + 31 + 496 + 6 + 87 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (63149668739) and next prime (63149668741).

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

It is not an unprimeable number, because it can be changed into a prime (63149668741) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 482058475 + ... + 482058605.

It is an arithmetic number, because the mean of its divisors is an integer number (531891360).

Almost surely, 2^63149668740 is an apocalyptic number.

63149668740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63149668740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102123141120).

63149668740 is an abundant number, since it is smaller than the sum of its proper divisors (141096613500).

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

63149668740 is a wasteful number, since it uses less digits than its factorization.

63149668740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 63149668740 in words is "sixty-three billion, one hundred forty-nine million, six hundred sixty-eight thousand, seven hundred forty".