70438068037440 has 560 divisors, whose sum is σ = 265356996043392. Its totient is φ = 17698640154624.

The previous prime is 70438068037411. The next prime is 70438068037501. The reversal of 70438068037440 is 4473086083407.

70438068037440 is a `hidden beast` number, since 7 + 0 + 43 + 80 + 6 + 80 + 3 + 7 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 39060982 + ... + 40824458.

Almost surely, 2^{70438068037440} 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 70438068037440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132678498021696).

70438068037440 is an abundant number, since it is smaller than the sum of its proper divisors (194918928005952).

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

70438068037440 is a wasteful number, since it uses less digits than its factorization.

70438068037440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763596 (or 1763577 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 54.

The spelling of 70438068037440 in words is "seventy trillion, four hundred thirty-eight billion, sixty-eight million, thirty-seven thousand, four hundred forty".