6954391545 has 16 divisors (see below), whose sum is σ = 11510717760. Its totient is φ = 3581111744.

The previous prime is 6954391531. The next prime is 6954391579. The reversal of 6954391545 is 5451934596.

It is a cyclic number.

It is not a de Polignac number, because 6954391545 - 2²³ = 6946002937 is a prime.

It is a super-2 number, since 2×6954391545² = 96727123522334974050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7993119 + ... + 7993988.

It is an arithmetic number, because the mean of its divisors is an integer number (719419860).

Almost surely, 2^6954391545 is an apocalyptic number.

It is an amenable number.

6954391545 is a deficient number, since it is larger than the sum of its proper divisors (4556326215).

6954391545 is a wasteful number, since it uses less digits than its factorization.

6954391545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15987144.

The product of its digits is 2916000, while the sum is 51.

The square root of 6954391545 is about 83392.9945798806. The cubic root of 6954391545 is about 1908.7675633503.

The spelling of 6954391545 in words is "six billion, nine hundred fifty-four million, three hundred ninety-one thousand, five hundred forty-five".