40699261867 has 32 divisors (see below), whose sum is σ = 46564968960. Its totient is φ = 35232960000.

The previous prime is 40699261861. The next prime is 40699261879. The reversal of 40699261867 is 76816299604.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40699261867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40699261861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7603242 + ... + 7608592.

It is an arithmetic number, because the mean of its divisors is an integer number (1455155280).

Almost surely, 2^40699261867 is an apocalyptic number.

40699261867 is a deficient number, since it is larger than the sum of its proper divisors (5865707093).

40699261867 is a wasteful number, since it uses less digits than its factorization.

40699261867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715.

The product of its (nonzero) digits is 7838208, while the sum is 58.

It can be divided in two parts, 4069 and 9261867, that added together give a square (9265936 = 3044²).

The spelling of 40699261867 in words is "forty billion, six hundred ninety-nine million, two hundred sixty-one thousand, eight hundred sixty-seven".