64700376820476 has 48 divisors (see below), whose sum is σ = 152176343531520. Its totient is φ = 21394151714880.

The previous prime is 64700376820403. The next prime is 64700376820487. The reversal of 64700376820476 is 67402867300746.

It is a super-2 number, since 2×64700376820476² (a number of 28 digits) contains 22 as substring.

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, 8768541 + ... + 14362731.

It is an arithmetic number, because the mean of its divisors is an integer number (3170340490240).

Almost surely, 2^{64700376820476} is an apocalyptic number.

It is an amenable number.

64700376820476 is an abundant number, since it is smaller than the sum of its proper divisors (87475966711044).

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

64700376820476 is a wasteful number, since it uses less digits than its factorization.

64700376820476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601914 (or 5601912 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 60.

The spelling of 64700376820476 in words is "sixty-four trillion, seven hundred billion, three hundred seventy-six million, eight hundred twenty thousand, four hundred seventy-six".