75401613243 has 96 divisors (see below), whose sum is σ = 124263921600. Its totient is φ = 43655086080.

The previous prime is 75401613239. The next prime is 75401613247. The reversal of 75401613243 is 34231610457.

75401613243 is a `hidden beast` number, since 7 + 5 + 401 + 6 + 1 + 3 + 243 = 666.

It is an interprime number because it is at equal distance from previous prime (75401613239) and next prime (75401613247).

It is not a de Polignac number, because 75401613243 - 2² = 75401613239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75401613198 and 75401613207.

It is not an unprimeable number, because it can be changed into a prime (75401613247) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 48676833 + ... + 48678381.

It is an arithmetic number, because the mean of its divisors is an integer number (1294415850).

Almost surely, 2^75401613243 is an apocalyptic number.

75401613243 is a deficient number, since it is larger than the sum of its proper divisors (48862308357).

75401613243 is a wasteful number, since it uses less digits than its factorization.

75401613243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 75401613243 in words is "seventy-five billion, four hundred one million, six hundred thirteen thousand, two hundred forty-three".