77034755110621 has 16 divisors (see below), whose sum is σ = 96142242912768. Its totient is φ = 59965261988400.

The previous prime is 77034755110601. The next prime is 77034755110631. The reversal of 77034755110621 is 12601155743077.

It is a cyclic number.

It is not a de Polignac number, because 77034755110621 - 2²¹ = 77034753013469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77034755110601) 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, 515090715 + ... + 515240248.

It is an arithmetic number, because the mean of its divisors is an integer number (6008890182048).

Almost surely, 2^{77034755110621} is an apocalyptic number.

It is an amenable number.

77034755110621 is a deficient number, since it is larger than the sum of its proper divisors (19107487802147).

77034755110621 is a wasteful number, since it uses less digits than its factorization.

77034755110621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030331952.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 77034755110621 in words is "seventy-seven trillion, thirty-four billion, seven hundred fifty-five million, one hundred ten thousand, six hundred twenty-one".