74077069640 has 64 divisors (see below), whose sum is σ = 190509148800. Its totient is φ = 25394485248.

The previous prime is 74077069637. The next prime is 74077069643. The reversal of 74077069640 is 4696077047.

It is an interprime number because it is at equal distance from previous prime (74077069637) and next prime (74077069643).

It is not an unprimeable number, because it can be changed into a prime (74077069643) 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, 3062072 + ... + 3086168.

It is an arithmetic number, because the mean of its divisors is an integer number (2976705450).

Almost surely, 2^74077069640 is an apocalyptic number.

74077069640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74077069640 is an abundant number, since it is smaller than the sum of its proper divisors (116432079160).

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

74077069640 is a wasteful number, since it uses less digits than its factorization.

74077069640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35094 (or 35090 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 74077069640 in words is "seventy-four billion, seventy-seven million, sixty-nine thousand, six hundred forty".