7620745407 has 48 divisors (see below), whose sum is σ = 11574549504. Its totient is φ = 4451990400.

The previous prime is 7620745403. The next prime is 7620745427. The reversal of 7620745407 is 7045470267.

It is not a de Polignac number, because 7620745407 - 2² = 7620745403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620745403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3183403 + ... + 3185795.

It is an arithmetic number, because the mean of its divisors is an integer number (241136448).

Almost surely, 2^7620745407 is an apocalyptic number.

7620745407 is a deficient number, since it is larger than the sum of its proper divisors (3953804097).

7620745407 is a wasteful number, since it uses less digits than its factorization.

7620745407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 42.

The square root of 7620745407 is about 87296.8808549309. The cubic root of 7620745407 is about 1967.8824427123.

The spelling of 7620745407 in words is "seven billion, six hundred twenty million, seven hundred forty-five thousand, four hundred seven".