63528020280 has 64 divisors (see below), whose sum is σ = 211760071200. Its totient is φ = 16940805120.

The previous prime is 63528020267. The next prime is 63528020293. The reversal of 63528020280 is 8202082536.

63528020280 is a `hidden beast` number, since 6 + 352 + 8 + 0 + 20 + 280 = 666.

It is an interprime number because it is at equal distance from previous prime (63528020267) and next prime (63528020293).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29410041 + ... + 29412200.

Almost surely, 2^63528020280 is an apocalyptic number.

63528020280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63528020280 is an abundant number, since it is smaller than the sum of its proper divisors (148232050920).

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

63528020280 is a wasteful number, since it uses less digits than its factorization.

63528020280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58822261 (or 58822251 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 63528020280 in words is "sixty-three billion, five hundred twenty-eight million, twenty thousand, two hundred eighty".