75399201437491 has 2 divisors, whose sum is σ = 75399201437492. Its totient is φ = 75399201437490.

The previous prime is 75399201437363. The next prime is 75399201437503. The reversal of 75399201437491 is 19473410299357.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75399201437491 - 2⁷ = 75399201437363 is a prime.

It is a super-2 number, since 2×75399201437491² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75399201437891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37699600718745 + 37699600718746.

It is an arithmetic number, because the mean of its divisors is an integer number (37699600718746).

Almost surely, 2^{75399201437491} is an apocalyptic number.

75399201437491 is a deficient number, since it is larger than the sum of its proper divisors (1).

75399201437491 is an equidigital number, since it uses as much as digits as its factorization.

75399201437491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51438240, while the sum is 64.

The spelling of 75399201437491 in words is "seventy-five trillion, three hundred ninety-nine billion, two hundred one million, four hundred thirty-seven thousand, four hundred ninety-one".