63952378101 has 54 divisors (see below), whose sum is σ = 96508770774. Its totient is φ = 40797540000.

The previous prime is 63952378097. The next prime is 63952378129. The reversal of 63952378101 is 10187325936.

63952378101 is a `hidden beast` number, since 639 + 5 + 2 + 3 + 7 + 8 + 1 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37742387076 + 26209991025 = 194274^2 + 161895^2 .

It is not a de Polignac number, because 63952378101 - 2² = 63952378097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63952378201) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 254790226 + ... + 254790476.

Almost surely, 2^63952378101 is an apocalyptic number.

63952378101 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

63952378101 is a deficient number, since it is larger than the sum of its proper divisors (32556392673).

63952378101 is an equidigital number, since it uses as much as digits as its factorization.

63952378101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 63952378101 in words is "sixty-three billion, nine hundred fifty-two million, three hundred seventy-eight thousand, one hundred one".