7023537661491 has 24 divisors (see below), whose sum is σ = 10932880410816. Its totient is φ = 4319258497920.

The previous prime is 7023537661453. The next prime is 7023537661529. The reversal of 7023537661491 is 1941667353207.

7023537661491 is a `hidden beast` number, since 7 + 0 + 2 + 3 + 537 + 6 + 6 + 14 + 91 = 666.

It is an interprime number because it is at equal distance from previous prime (7023537661453) and next prime (7023537661529).

It is not a de Polignac number, because 7023537661491 - 2¹⁴ = 7023537645107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7023537661891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20093515 + ... + 20440068.

It is an arithmetic number, because the mean of its divisors is an integer number (455536683784).

Almost surely, 2^{7023537661491} is an apocalyptic number.

7023537661491 is a deficient number, since it is larger than the sum of its proper divisors (3909342749325).

7023537661491 is a wasteful number, since it uses less digits than its factorization.

7023537661491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40535083 (or 40535080 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 7023537661491 in words is "seven trillion, twenty-three billion, five hundred thirty-seven million, six hundred sixty-one thousand, four hundred ninety-one".