1078677252477 has 42 divisors (see below), whose sum is σ = 1777667203326. Its totient is φ = 653743735920.

The previous prime is 1078677252473. The next prime is 1078677252491. The reversal of 1078677252477 is 7742527768701.

1078677252477 is a `hidden beast` number, since 1 + 0 + 78 + 6 + 77 + 25 + 2 + 477 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1069474495716 + 9202756761 = 1034154^2 + 95931^2 .

It is not a de Polignac number, because 1078677252477 - 2² = 1078677252473 is a prime.

It is a super-2 number, since 2×1078677252477² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078677252473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 6026118 + ... + 6202535.

It is an arithmetic number, because the mean of its divisors is an integer number (42325409603).

Almost surely, 2^{1078677252477} is an apocalyptic number.

It is an amenable number.

1078677252477 is a deficient number, since it is larger than the sum of its proper divisors (698989950849).

1078677252477 is an equidigital number, since it uses as much as digits as its factorization.

1078677252477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12228693 (or 12228667 counting only the distinct ones).

The product of its (nonzero) digits is 64538880, while the sum is 63.

The spelling of 1078677252477 in words is "one trillion, seventy-eight billion, six hundred seventy-seven million, two hundred fifty-two thousand, four hundred seventy-seven".