7672649971 has 16 divisors (see below), whose sum is σ = 9155639808. Its totient is φ = 6286737600.

The previous prime is 7672649953. The next prime is 7672650043. The reversal of 7672649971 is 1799462767.

It is a cyclic number.

It is not a de Polignac number, because 7672649971 - 2²¹ = 7670552819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7672649951) 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, 263236 + ... + 290926.

It is an arithmetic number, because the mean of its divisors is an integer number (572227488).

Almost surely, 2^7672649971 is an apocalyptic number.

7672649971 is a deficient number, since it is larger than the sum of its proper divisors (1482989837).

7672649971 is a wasteful number, since it uses less digits than its factorization.

7672649971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29442.

The product of its digits is 8001504, while the sum is 58.

The square root of 7672649971 is about 87593.6639888982. The cubic root of 7672649971 is about 1972.3400582150.

The spelling of 7672649971 in words is "seven billion, six hundred seventy-two million, six hundred forty-nine thousand, nine hundred seventy-one".