40064038097808 has 80 divisors (see below), whose sum is σ = 105091131889856. Its totient is φ = 13149821491200.

The previous prime is 40064038097807. The next prime is 40064038097827. The reversal of 40064038097808 is 80879083046004.

It is a super-2 number, since 2×40064038097808² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40064038097807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7406410 + ... + 11618217.

Almost surely, 2^{40064038097808} is an apocalyptic number.

40064038097808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40064038097808 is an abundant number, since it is smaller than the sum of its proper divisors (65027093792048).

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

40064038097808 is a wasteful number, since it uses less digits than its factorization.

40064038097808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19025312 (or 19025306 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 40064038097808 in words is "forty trillion, sixty-four billion, thirty-eight million, ninety-seven thousand, eight hundred eight".