40515556242 has 64 divisors (see below), whose sum is σ = 93560868864. Its totient is φ = 11457201600.

The previous prime is 40515556201. The next prime is 40515556253. The reversal of 40515556242 is 24265551504.

It is a self number, because there is not a number n which added to its sum of digits gives 40515556242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1745203 + ... + 1768265.

It is an arithmetic number, because the mean of its divisors is an integer number (1461888576).

Almost surely, 2^40515556242 is an apocalyptic number.

40515556242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40515556242 is an abundant number, since it is smaller than the sum of its proper divisors (53045312622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40515556242 is a wasteful number, since it uses less digits than its factorization.

40515556242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23503.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 40515556242 in words is "forty billion, five hundred fifteen million, five hundred fifty-six thousand, two hundred forty-two".