40030501861 has 16 divisors (see below), whose sum is σ = 48219740800. Its totient is φ = 32463618048.

The previous prime is 40030501837. The next prime is 40030501873. The reversal of 40030501861 is 16810503004.

It is a cyclic number.

It is not a de Polignac number, because 40030501861 - 2⁹ = 40030501349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030501831) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 93420 + ... + 297973.

It is an arithmetic number, because the mean of its divisors is an integer number (3013733800).

Almost surely, 2^40030501861 is an apocalyptic number.

It is an amenable number.

40030501861 is a deficient number, since it is larger than the sum of its proper divisors (8189238939).

40030501861 is a wasteful number, since it uses less digits than its factorization.

40030501861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392188.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 40030501861 in words is "forty billion, thirty million, five hundred one thousand, eight hundred sixty-one".