700138909440 has 432 divisors, whose sum is σ = 2553378094176. Its totient is φ = 183638016000.

The previous prime is 700138909307. The next prime is 700138909451. The reversal of 700138909440 is 44909831007.

700138909440 is a `hidden beast` number, since 70 + 0 + 138 + 9 + 0 + 9 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×700138909440² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18954990 + ... + 18991890.

Almost surely, 2^700138909440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 700138909440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276689047088).

700138909440 is an abundant number, since it is smaller than the sum of its proper divisors (1853239184736).

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

700138909440 is an equidigital number, since it uses as much as digits as its factorization.

700138909440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36998 (or 36972 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 700138909440 in words is "seven hundred billion, one hundred thirty-eight million, nine hundred nine thousand, four hundred forty".