84070251951 has 32 divisors (see below), whose sum is σ = 130248089088. Its totient is φ = 47241169920.

The previous prime is 84070251899. The next prime is 84070251973. The reversal of 84070251951 is 15915207048.

It is not a de Polignac number, because 84070251951 - 2¹¹ = 84070249903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84070251151) 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 31 ways as a sum of consecutive naturals, for example, 435256 + ... + 597986.

It is an arithmetic number, because the mean of its divisors is an integer number (4070252784).

Almost surely, 2^84070251951 is an apocalyptic number.

84070251951 is a deficient number, since it is larger than the sum of its proper divisors (46177837137).

84070251951 is a wasteful number, since it uses less digits than its factorization.

84070251951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163151.

The product of its (nonzero) digits is 100800, while the sum is 42.

Adding to 84070251951 its reverse (15915207048), we get a palindrome (99985458999).

The spelling of 84070251951 in words is "eighty-four billion, seventy million, two hundred fifty-one thousand, nine hundred fifty-one".