73949262421 has 8 divisors (see below), whose sum is σ = 79178987160. Its totient is φ = 68817289728.

The previous prime is 73949262403. The next prime is 73949262467. The reversal of 73949262421 is 12426294937.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2993621796 + 70955640625 = 54714^2 + 266375^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73949262421 - 2¹³ = 73949254229 is a prime.

It is a super-3 number, since 3×73949262421³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73949260421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24436446 + ... + 24439471.

It is an arithmetic number, because the mean of its divisors is an integer number (9897373395).

Almost surely, 2^73949262421 is an apocalyptic number.

It is an amenable number.

73949262421 is a deficient number, since it is larger than the sum of its proper divisors (5229724739).

73949262421 is a wasteful number, since it uses less digits than its factorization.

73949262421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48876023.

The product of its digits is 1306368, while the sum is 49.

The spelling of 73949262421 in words is "seventy-three billion, nine hundred forty-nine million, two hundred sixty-two thousand, four hundred twenty-one".