72078002143 has 16 divisors (see below), whose sum is σ = 87672386880. Its totient is φ = 57845661696.

The previous prime is 72078002099. The next prime is 72078002153. The reversal of 72078002143 is 34120087027.

It is a cyclic number.

It is not a de Polignac number, because 72078002143 - 2¹⁷ = 72077871071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72078002099 and 72078002108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72078002153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546198 + ... + 1592131.

It is an arithmetic number, because the mean of its divisors is an integer number (5479524180).

Almost surely, 2^72078002143 is an apocalyptic number.

72078002143 is a deficient number, since it is larger than the sum of its proper divisors (15594384737).

72078002143 is a wasteful number, since it uses less digits than its factorization.

72078002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138546.

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 72078002143 in words is "seventy-two billion, seventy-eight million, two thousand, one hundred forty-three".