61534510150417 has 2 divisors, whose sum is σ = 61534510150418. Its totient is φ = 61534510150416.

The previous prime is 61534510150397. The next prime is 61534510150507. The reversal of 61534510150417 is 71405101543516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61222628111121 + 311882039296 = 7824489^2 + 558464^2 .

It is a cyclic number.

It is not a de Polignac number, because 61534510150417 - 2¹⁹ = 61534509626129 is a prime.

It is not a weakly prime, because it can be changed into another prime (61534510250417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30767255075208 + 30767255075209.

It is an arithmetic number, because the mean of its divisors is an integer number (30767255075209).

Almost surely, 2^{61534510150417} is an apocalyptic number.

It is an amenable number.

61534510150417 is a deficient number, since it is larger than the sum of its proper divisors (1).

61534510150417 is an equidigital number, since it uses as much as digits as its factorization.

61534510150417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 61534510150417 in words is "sixty-one trillion, five hundred thirty-four billion, five hundred ten million, one hundred fifty thousand, four hundred seventeen".