7201864545 has 32 divisors (see below), whose sum is σ = 11651607552. Its totient is φ = 3798228672.

The previous prime is 7201864531. The next prime is 7201864577. The reversal of 7201864545 is 5454681027.

It is a happy number.

It is not a de Polignac number, because 7201864545 - 2¹⁰ = 7201863521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7201864497 and 7201864506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1212954 + ... + 1218876.

It is an arithmetic number, because the mean of its divisors is an integer number (364112736).

Almost surely, 2^7201864545 is an apocalyptic number.

It is an amenable number.

7201864545 is a deficient number, since it is larger than the sum of its proper divisors (4449743007).

7201864545 is a wasteful number, since it uses less digits than its factorization.

7201864545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6821.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 7201864545 is about 84863.7999679486. The cubic root of 7201864545 is about 1931.1454398623.

The spelling of 7201864545 in words is "seven billion, two hundred one million, eight hundred sixty-four thousand, five hundred forty-five".