70638187000 has 64 divisors (see below), whose sum is σ = 165398163840. Its totient is φ = 28237360000.

The previous prime is 70638186991. The next prime is 70638187057. The reversal of 70638187000 is 78183607.

It is a super-3 number, since 3×70638187000³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 1615425 + ... + 1658575.

It is an arithmetic number, because the mean of its divisors is an integer number (2584346310).

Almost surely, 2^70638187000 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 70638187000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82699081920).

70638187000 is an abundant number, since it is smaller than the sum of its proper divisors (94759976840).

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

70638187000 is a wasteful number, since it uses less digits than its factorization.

70638187000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44809 (or 44795 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 70638187000 in words is "seventy billion, six hundred thirty-eight million, one hundred eighty-seven thousand".