7420545078 has 32 divisors (see below), whose sum is σ = 14920588800. Its totient is φ = 2460302016.

The previous prime is 7420545073. The next prime is 7420545091. The reversal of 7420545078 is 8705450247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420545071) 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, 876775 + ... + 885197.

It is an arithmetic number, because the mean of its divisors is an integer number (466268400).

Almost surely, 2^7420545078 is an apocalyptic number.

7420545078 is an abundant number, since it is smaller than the sum of its proper divisors (7500043722).

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

7420545078 is a wasteful number, since it uses less digits than its factorization.

7420545078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9196.

The product of its (nonzero) digits is 313600, while the sum is 42.

The square root of 7420545078 is about 86142.5857401553. The cubic root of 7420545078 is about 1950.4969216156.

The spelling of 7420545078 in words is "seven billion, four hundred twenty million, five hundred forty-five thousand, seventy-eight".