73949157641 has 16 divisors (see below), whose sum is σ = 77515567488. Its totient is φ = 70412390400.

The previous prime is 73949157563. The next prime is 73949157649. The reversal of 73949157641 is 14675194937.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73949157641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73949157649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11883911 + ... + 11890131.

It is an arithmetic number, because the mean of its divisors is an integer number (4844722968).

Almost surely, 2^73949157641 is an apocalyptic number.

It is an amenable number.

73949157641 is a deficient number, since it is larger than the sum of its proper divisors (3566409847).

73949157641 is a wasteful number, since it uses less digits than its factorization.

73949157641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512.

The product of its digits is 5715360, while the sum is 56.

The spelling of 73949157641 in words is "seventy-three billion, nine hundred forty-nine million, one hundred fifty-seven thousand, six hundred forty-one".