73776491001 has 6 divisors (see below), whose sum is σ = 106566042570. Its totient is φ = 49184327328.

The previous prime is 73776490981. The next prime is 73776491077. The reversal of 73776491001 is 10019467737.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43107725376 + 30668765625 = 207624^2 + 175125^2 .

It is not a de Polignac number, because 73776491001 - 2⁷ = 73776490873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73776491101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4098693936 + ... + 4098693953.

It is an arithmetic number, because the mean of its divisors is an integer number (17761007095).

Almost surely, 2^73776491001 is an apocalyptic number.

It is an amenable number.

73776491001 is a deficient number, since it is larger than the sum of its proper divisors (32789551569).

73776491001 is a wasteful number, since it uses less digits than its factorization.

73776491001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8197387895 (or 8197387892 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The spelling of 73776491001 in words is "seventy-three billion, seven hundred seventy-six million, four hundred ninety-one thousand, one".