86720507461 has 16 divisors (see below), whose sum is σ = 100794246784. Its totient is φ = 73074680064.

The previous prime is 86720507459. The next prime is 86720507473. The reversal of 86720507461 is 16470502768.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86720507461 - 2¹ = 86720507459 is a prime.

It is a super-3 number, since 3×86720507461³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86720507261) 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, 119520 + ... + 433273.

It is an arithmetic number, because the mean of its divisors is an integer number (6299640424).

Almost surely, 2^86720507461 is an apocalyptic number.

It is an amenable number.

86720507461 is a deficient number, since it is larger than the sum of its proper divisors (14073739323).

86720507461 is a wasteful number, since it uses less digits than its factorization.

86720507461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553180.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 86720507461 in words is "eighty-six billion, seven hundred twenty million, five hundred seven thousand, four hundred sixty-one".