697981428955 has 16 divisors (see below), whose sum is σ = 888762478464. Its totient is φ = 524403855360.

The previous prime is 697981428913. The next prime is 697981428959. The reversal of 697981428955 is 559824189796.

It is not a de Polignac number, because 697981428955 - 2¹¹ = 697981426907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (697981428959) 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, 8828406 + ... + 8907115.

It is an arithmetic number, because the mean of its divisors is an integer number (55547654904).

Almost surely, 2^697981428955 is an apocalyptic number.

697981428955 is a deficient number, since it is larger than the sum of its proper divisors (190781049509).

697981428955 is a wasteful number, since it uses less digits than its factorization.

697981428955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17736006.

The product of its digits is 391910400, while the sum is 73.

The spelling of 697981428955 in words is "six hundred ninety-seven billion, nine hundred eighty-one million, four hundred twenty-eight thousand, nine hundred fifty-five".