7140078078 has 16 divisors (see below), whose sum is σ = 16320178560. Its totient is φ = 2040022296.

The previous prime is 7140078053. The next prime is 7140078079. The reversal of 7140078078 is 8708700417.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 170001859 = 7140078078 / (7 + 1 + 4 + 0 + 0 + 7 + 8 + 0 + 7 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140078079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85000888 + ... + 85000971.

It is an arithmetic number, because the mean of its divisors is an integer number (1020011160).

Almost surely, 2^7140078078 is an apocalyptic number.

7140078078 is an abundant number, since it is smaller than the sum of its proper divisors (9180100482).

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

7140078078 is a wasteful number, since it uses less digits than its factorization.

7140078078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170001871.

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 7140078078 is about 84498.9827039356. The cubic root of 7140078078 is about 1925.6069893795.

The spelling of 7140078078 in words is "seven billion, one hundred forty million, seventy-eight thousand, seventy-eight".