7770085971 has 16 divisors (see below), whose sum is σ = 10723872000. Its totient is φ = 4998395808.

The previous prime is 7770085937. The next prime is 7770085997. The reversal of 7770085971 is 1795800777.

It is a happy number.

It is not a de Polignac number, because 7770085971 - 2¹⁸ = 7769823827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7770085571) 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, 121530 + ... + 174096.

It is an arithmetic number, because the mean of its divisors is an integer number (670242000).

Almost surely, 2^7770085971 is an apocalyptic number.

7770085971 is a deficient number, since it is larger than the sum of its proper divisors (2953786029).

7770085971 is a wasteful number, since it uses less digits than its factorization.

7770085971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54298.

The product of its (nonzero) digits is 864360, while the sum is 51.

The square root of 7770085971 is about 88148.0911364506. The cubic root of 7770085971 is about 1980.6539664616.

The spelling of 7770085971 in words is "seven billion, seven hundred seventy million, eighty-five thousand, nine hundred seventy-one".