40078007349121 has 24 divisors (see below), whose sum is σ = 46816467645024. Its totient is φ = 34208821019520.

The previous prime is 40078007349103. The next prime is 40078007349143. The reversal of 40078007349121 is 12194370087004.

It is not a de Polignac number, because 40078007349121 - 2⁷ = 40078007348993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40078007349221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529513146 + ... + 529588828.

It is an arithmetic number, because the mean of its divisors is an integer number (1950686151876).

Almost surely, 2^{40078007349121} is an apocalyptic number.

It is an amenable number.

40078007349121 is a deficient number, since it is larger than the sum of its proper divisors (6738460295903).

40078007349121 is a wasteful number, since it uses less digits than its factorization.

40078007349121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120781 (or 120774 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 40078007349121 in words is "forty trillion, seventy-eight billion, seven million, three hundred forty-nine thousand, one hundred twenty-one".