7816012153 has 4 divisors (see below), whose sum is σ = 7861191588. Its totient is φ = 7770832720.

The previous prime is 7816012151. The next prime is 7816012189. The reversal of 7816012153 is 3512106187.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3512106187 = 23 ⋅152700269.

It can be written as a sum of positive squares in 2 ways, for example, as 3771433744 + 4044578409 = 61412^2 + 63597^2 .

It is a cyclic number.

It is not a de Polignac number, because 7816012153 - 2¹ = 7816012151 is a prime.

It is a super-2 number, since 2×7816012153² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7816012151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22589458 + ... + 22589803.

It is an arithmetic number, because the mean of its divisors is an integer number (1965297897).

Almost surely, 2^7816012153 is an apocalyptic number.

It is an amenable number.

7816012153 is a deficient number, since it is larger than the sum of its proper divisors (45179435).

7816012153 is a wasteful number, since it uses less digits than its factorization.

7816012153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45179434.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 7816012153 is about 88408.2131535300. The cubic root of 7816012153 is about 1984.5486141668.

The spelling of 7816012153 in words is "seven billion, eight hundred sixteen million, twelve thousand, one hundred fifty-three".