64210642748 has 24 divisors (see below), whose sum is σ = 134004820992. Its totient is φ = 26322375024.

The previous prime is 64210642687. The next prime is 64210642781. The reversal of 64210642748 is 84724601246.

It is a super-2 number, since 2×64210642748² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64210642699 and 64210642708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49852340 + ... + 49853627.

It is an arithmetic number, because the mean of its divisors is an integer number (5583534208).

Almost surely, 2^64210642748 is an apocalyptic number.

It is an amenable number.

64210642748 is an abundant number, since it is smaller than the sum of its proper divisors (69794178244).

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

64210642748 is a wasteful number, since it uses less digits than its factorization.

64210642748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99706001 (or 99705999 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 64210642748 in words is "sixty-four billion, two hundred ten million, six hundred forty-two thousand, seven hundred forty-eight".