87149472951 has 32 divisors (see below), whose sum is σ = 120465442816. Its totient is φ = 55983312000.

The previous prime is 87149472923. The next prime is 87149472959. The reversal of 87149472951 is 15927494178.

It is not a de Polignac number, because 87149472951 - 2⁵ = 87149472919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87149472891 and 87149472900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87149472959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24402996 + ... + 24406566.

It is an arithmetic number, because the mean of its divisors is an integer number (3764545088).

Almost surely, 2^87149472951 is an apocalyptic number.

87149472951 is a deficient number, since it is larger than the sum of its proper divisors (33315969865).

87149472951 is a wasteful number, since it uses less digits than its factorization.

87149472951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663.

The product of its digits is 5080320, while the sum is 57.

The spelling of 87149472951 in words is "eighty-seven billion, one hundred forty-nine million, four hundred seventy-two thousand, nine hundred fifty-one".