40100454545 has 8 divisors (see below), whose sum is σ = 48661226280. Its totient is φ = 31719909760.

The previous prime is 40100454509. The next prime is 40100454587. The reversal of 40100454545 is 54545400104.

It can be written as a sum of positive squares in 4 ways, for example, as 7188326656 + 32912127889 = 84784^2 + 181417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40100454545 - 2⁶ = 40100454481 is a prime.

It is a super-2 number, since 2×40100454545² (a number of 22 digits) contains 22 as substring.

40100454545 is a modest number, since divided by 454545 gives 40100 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45056246 + ... + 45057135.

It is an arithmetic number, because the mean of its divisors is an integer number (6082653285).

Almost surely, 2^40100454545 is an apocalyptic number.

It is an amenable number.

40100454545 is a deficient number, since it is larger than the sum of its proper divisors (8560771735).

40100454545 is an equidigital number, since it uses as much as digits as its factorization.

40100454545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90113475.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 40100454545 its reverse (54545400104), we get a palindrome (94645854649).

The spelling of 40100454545 in words is "forty billion, one hundred million, four hundred fifty-four thousand, five hundred forty-five".