187864146242070 has 64 divisors (see below), whose sum is σ = 451145665128960. Its totient is φ = 50066917579008.

The previous prime is 187864146242009. The next prime is 187864146242093. The reversal of 187864146242070 is 70242641468781.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 187864146241995 and 187864146242013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1611969861 + ... + 1612086399.

It is an arithmetic number, because the mean of its divisors is an integer number (7049151017640).

Almost surely, 2^{187864146242070} is an apocalyptic number.

187864146242070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

187864146242070 is an abundant number, since it is smaller than the sum of its proper divisors (263281518886890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

187864146242070 is a wasteful number, since it uses less digits than its factorization.

187864146242070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148469.

The product of its (nonzero) digits is 28901376, while the sum is 60.

The spelling of 187864146242070 in words is "one hundred eighty-seven trillion, eight hundred sixty-four billion, one hundred forty-six million, two hundred forty-two thousand, seventy".