7422661537 has 2 divisors, whose sum is σ = 7422661538. Its totient is φ = 7422661536.

The previous prime is 7422661489. The next prime is 7422661553. The reversal of 7422661537 is 7351662247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6527993616 + 894667921 = 80796^2 + 29911^2 .

It is a cyclic number.

It is not a de Polignac number, because 7422661537 - 2³¹ = 5275177889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7422661493 and 7422661502.

It is not a weakly prime, because it can be changed into another prime (7420661537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3711330768 + 3711330769.

It is an arithmetic number, because the mean of its divisors is an integer number (3711330769).

Almost surely, 2^7422661537 is an apocalyptic number.

It is an amenable number.

7422661537 is a deficient number, since it is larger than the sum of its proper divisors (1).

7422661537 is an equidigital number, since it uses as much as digits as its factorization.

7422661537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 43.

The square root of 7422661537 is about 86154.8694909348. The cubic root of 7422661537 is about 1950.6823417032.

The spelling of 7422661537 in words is "seven billion, four hundred twenty-two million, six hundred sixty-one thousand, five hundred thirty-seven".