75206640770 has 32 divisors (see below), whose sum is σ = 139870126080. Its totient is φ = 29084886720.

The previous prime is 75206640757. The next prime is 75206640779. The reversal of 75206640770 is 7704660257.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75206640779) 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, 217919 + ... + 444861.

It is an arithmetic number, because the mean of its divisors is an integer number (4370941440).

Almost surely, 2^75206640770 is an apocalyptic number.

75206640770 is a deficient number, since it is larger than the sum of its proper divisors (64663485310).

75206640770 is a wasteful number, since it uses less digits than its factorization.

75206640770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228050.

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 75206640770 in words is "seventy-five billion, two hundred six million, six hundred forty thousand, seven hundred seventy".