64130341782 has 96 divisors (see below), whose sum is σ = 148711451040. Its totient is φ = 18362572800.

The previous prime is 64130341763. The next prime is 64130341879. The reversal of 64130341782 is 28714303146.

It is a super-2 number, since 2×64130341782² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 64130341782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1513282 + ... + 1555082.

It is an arithmetic number, because the mean of its divisors is an integer number (1549077615).

Almost surely, 2^64130341782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64130341782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74355725520).

64130341782 is an abundant number, since it is smaller than the sum of its proper divisors (84581109258).

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

64130341782 is a wasteful number, since it uses less digits than its factorization.

64130341782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41938 (or 41925 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 64130341782 in words is "sixty-four billion, one hundred thirty million, three hundred forty-one thousand, seven hundred eighty-two".