40969813450 has 12 divisors (see below), whose sum is σ = 76203853110. Its totient is φ = 16387925360.

The previous prime is 40969813447. The next prime is 40969813453. The reversal of 40969813450 is 5431896904.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40969813447) and next prime (40969813453).

It can be written as a sum of positive squares in 3 ways, for example, as 30594557569 + 10375255881 = 174913^2 + 101859^2 .

It is a super-2 number, since 2×40969813450² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40969813394 and 40969813403.

It is not an unprimeable number, because it can be changed into a prime (40969813453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 409698085 + ... + 409698184.

Almost surely, 2^40969813450 is an apocalyptic number.

40969813450 is a deficient number, since it is larger than the sum of its proper divisors (35234039660).

40969813450 is a wasteful number, since it uses less digits than its factorization.

40969813450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819396281 (or 819396276 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 40969813450 in words is "forty billion, nine hundred sixty-nine million, eight hundred thirteen thousand, four hundred fifty".