7454315091861 has 160 divisors (see below), whose sum is σ = 12765447991296. Its totient is φ = 4294766448000.

The previous prime is 7454315091827. The next prime is 7454315091863. The reversal of 7454315091861 is 1681905134547.

7454315091861 is a `hidden beast` number, since 7 + 4 + 54 + 3 + 1 + 509 + 1 + 86 + 1 = 666.

It is not a de Polignac number, because 7454315091861 - 2¹¹ = 7454315089813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7454315091798 and 7454315091807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7454315091863) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 325917256 + ... + 325940126.

Almost surely, 2^{7454315091861} is an apocalyptic number.

It is an amenable number.

7454315091861 is a deficient number, since it is larger than the sum of its proper divisors (5311132899435).

7454315091861 is a wasteful number, since it uses less digits than its factorization.

7454315091861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23165 (or 23156 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 7454315091861 in words is "seven trillion, four hundred fifty-four billion, three hundred fifteen million, ninety-one thousand, eight hundred sixty-one".