7266487861 has 8 divisors (see below), whose sum is σ = 7368099200. Its totient is φ = 7165117440.

The previous prime is 7266487843. The next prime is 7266487873. The reversal of 7266487861 is 1687846627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7266487861 - 2⁷ = 7266487733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7266487061) 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, 946 + ... + 120556.

It is an arithmetic number, because the mean of its divisors is an integer number (921012400).

Almost surely, 2^7266487861 is an apocalyptic number.

It is an amenable number.

7266487861 is a deficient number, since it is larger than the sum of its proper divisors (101611339).

7266487861 is a wasteful number, since it uses less digits than its factorization.

7266487861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120459.

The product of its digits is 5419008, while the sum is 55.

The square root of 7266487861 is about 85243.6968989497. The cubic root of 7266487861 is about 1936.9043928565.

The spelling of 7266487861 in words is "seven billion, two hundred sixty-six million, four hundred eighty-seven thousand, eight hundred sixty-one".