7720064142 has 16 divisors (see below), whose sum is σ = 17645860992. Its totient is φ = 2205732600.

The previous prime is 7720064141. The next prime is 7720064153. The reversal of 7720064142 is 2414600277.

It is a super-3 number, since 3×7720064142³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720064141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91905484 + ... + 91905567.

It is an arithmetic number, because the mean of its divisors is an integer number (1102866312).

Almost surely, 2^7720064142 is an apocalyptic number.

7720064142 is an abundant number, since it is smaller than the sum of its proper divisors (9925796850).

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

7720064142 is a wasteful number, since it uses less digits than its factorization.

7720064142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183811063.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 7720064142 is about 87863.8955544312. The cubic root of 7720064142 is about 1976.3944980942.

The spelling of 7720064142 in words is "seven billion, seven hundred twenty million, sixty-four thousand, one hundred forty-two".