40778152264 has 8 divisors (see below), whose sum is σ = 76459035510. Its totient is φ = 20389076128.

The previous prime is 40778152223. The next prime is 40778152319. The reversal of 40778152264 is 46225187704.

It can be written as a sum of positive squares in only one way, i.e., 40775724900 + 2427364 = 201930^2 + 1558^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2548634509 + ... + 2548634524.

Almost surely, 2^40778152264 is an apocalyptic number.

It is an amenable number.

40778152264 is a deficient number, since it is larger than the sum of its proper divisors (35680883246).

40778152264 is a wasteful number, since it uses less digits than its factorization.

40778152264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097269039 (or 5097269035 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 40778152264 in words is "forty billion, seven hundred seventy-eight million, one hundred fifty-two thousand, two hundred sixty-four".