77401000033 has 16 divisors (see below), whose sum is σ = 93817495296. Its totient is φ = 62418882240.

The previous prime is 77401000021. The next prime is 77401000049. The reversal of 77401000033 is 33000010477.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 77401000033 - 2⁹ = 77400999521 is a prime.

It is a super-2 number, since 2×77401000033² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77400999971 and 77401000007.

It is not an unprimeable number, because it can be changed into a prime (77401000073) 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, 3930766 + ... + 3950407.

It is an arithmetic number, because the mean of its divisors is an integer number (5863593456).

Almost surely, 2^77401000033 is an apocalyptic number.

It is an amenable number.

77401000033 is a deficient number, since it is larger than the sum of its proper divisors (16416495263).

77401000033 is a wasteful number, since it uses less digits than its factorization.

77401000033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881264.

The product of its (nonzero) digits is 1764, while the sum is 25.

The spelling of 77401000033 in words is "seventy-seven billion, four hundred one million, thirty-three", and thus it is an aban number.