70083000078 has 128 divisors (see below), whose sum is σ = 178308587520. Its totient is φ = 17863925760.

The previous prime is 70083000059. The next prime is 70083000137. The reversal of 70083000078 is 87000038007.

70083000078 is a nontrivial binomial coefficient, being equal to C(374388, 2).

It is a super-3 number, since 3×70083000078³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15722026 + ... + 15726482.

It is an arithmetic number, because the mean of its divisors is an integer number (1393035840).

Almost surely, 2^70083000078 is an apocalyptic number.

70083000078 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

70083000078 is the 374387-th triangular number and also the 187194-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70083000078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89154293760).

70083000078 is an abundant number, since it is smaller than the sum of its proper divisors (108225587442).

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

70083000078 is a wasteful number, since it uses less digits than its factorization.

70083000078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442.

The product of its (nonzero) digits is 9408, while the sum is 33.

The spelling of 70083000078 in words is "seventy billion, eighty-three million, seventy-eight", and thus it is an aban number and an uban number.