980777551 has 16 divisors (see below), whose sum is σ = 1074769920. Its totient is φ = 889555680.

The previous prime is 980777533. The next prime is 980777563. The reversal of 980777551 is 155777089.

It is not a de Polignac number, because 980777551 - 2¹¹ = 980775503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 980777495 and 980777504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980777251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203710 + ... + 208468.

It is an arithmetic number, because the mean of its divisors is an integer number (67173120).

Almost surely, 2^980777551 is an apocalyptic number.

980777551 is a deficient number, since it is larger than the sum of its proper divisors (93992369).

980777551 is a wasteful number, since it uses less digits than its factorization.

980777551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046.

The product of its (nonzero) digits is 617400, while the sum is 49.

The square root of 980777551 is about 31317.3682004092. The cubic root of 980777551 is about 993.5510170216.

The spelling of 980777551 in words is "nine hundred eighty million, seven hundred seventy-seven thousand, five hundred fifty-one".