40064468468 has 6 divisors (see below), whose sum is σ = 70112819826. Its totient is φ = 20032234232.

The previous prime is 40064468467. The next prime is 40064468491. The reversal of 40064468468 is 86486446004.

It can be written as a sum of positive squares in only one way, i.e., 32453301904 + 7611166564 = 180148^2 + 87242^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40064468467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5008058555 + ... + 5008058562.

It is an arithmetic number, because the mean of its divisors is an integer number (11685469971).

Almost surely, 2^40064468468 is an apocalyptic number.

It is an amenable number.

40064468468 is a deficient number, since it is larger than the sum of its proper divisors (30048351358).

40064468468 is a wasteful number, since it uses less digits than its factorization.

40064468468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016117121 (or 10016117119 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 50.

The spelling of 40064468468 in words is "forty billion, sixty-four million, four hundred sixty-eight thousand, four hundred sixty-eight".